Slytherin

Slytherin was one of the four Houses at Hogwarts School of Witchcraft and Wizardry, founded by Salazar Slytherin. In establishing the house, Salazar instructed the Sorting Hat to pick students who had a few particular characteristics he most valued. Those characteristics included cunning, resourcefulness, leadership, and ambition. 
Many Slytherin students tended to clique together (often acquiring leaders) which further exemplified Slytherin's ambitious qualities. Examples of these included Draco Malfoy's gang, Merula Snyde's gang, Pansy Parkinson's gang and Tom Riddle's gang (which later became the Death Eaters).
The founder highly valued and favoured pure-blood students and the Sorting Hat admitted that it could be a factor when being sorted. Students of any blood status could be placed in the house. However, a Muggle-born student from that house was considered to be quite rare.
The emblematic animal of the house was a snake and the house's colours were green and silver. There were two notable heads of the house; Horace Slughorn took the role twice (first leaving in 1981 and then taking the role again from 1997 until leaving before 2016), and Severus Snape. The patron ghost of the house was the Bloody Baron.
Slytherin corresponded roughly with the element of water due to serpents being commonly associated with the sea and lochs in western European mythology, as well as serpents being physically fluid and flexible animals.The Leaky Cauldron and Mugglenet interview Joanne Kathleen Rowling Similarly, in Celtic mythology, water is seen as a portal to another world, leading some to believe that the element was chosen to symbolise a Slytherin's dream for a world in which their goals and ambitions had finally been achieved. Others speculate that it was chosen to symbolise many Slytherins' hope for a pureblood-only wizarding society. 
The colours also corresponded with waters around lakes and lochs often being green, and silver being often associated with grey rainwater.
==History==
Salazar Slytherin was a pure-blood supremacist and believed half-bloods and, more specifically, Muggleborns to be unworthy of being taught magic. Slytherin's views at the time could have been attributed to the persecution of witches and wizards at the hand of Muggles during that century.
Slytherin's opposition over the idea to allow witches and wizards from half-blood and Muggle-born heritage to enrol at Hogwarts during its foundation created great controversy at the school, and it was the root of a feud between former friends Slytherin and Godric Gryffindor. Slytherin later decided to leave the school when an argument started between him and Gryffindor, and they either duelled or started a civil war between the two houses. Such an argument would be forever known as the origin of the feud between their two houses and also made them the houses that are most competitive.
When Slytherin departed Hogwarts, he would leave behind the Chamber of Secrets with the purpose of an heir opening the chamber one day and unleashing a means to 'protect' the school from those who, in his view, were enemies of magic: Muggle-borns. The chamber was opened twice and the Serpent of Slytherin was killed the second time by Harry Potter in 1992.
==Traits==
Slytherins tended to be ambitious, shrewd, cunning, strong leaders, and achievement-oriented. They also had highly developed senses of self-preservation. This means that Slytherins tended to hesitate before acting, so as to weigh all possible outcomes before deciding exactly what should be done.
According to Albus Dumbledore, the qualities which Salazar valued in the students he had chosen included cleverness, resourcefulness, determination, and "a certain disregard for the rules". Dumbledore noted that all of these were qualities possessed by Harry Potter, who was a Gryffindor but was almost placed in Slytherin.
Slytherins tended to take charge and possessed strong leadership skills. They were often self-assured and confident of their own competence and can be very loyal.
Another characteristic some Slytherins share was a tendency towards deep, unrequited love. Severus Snape and the Bloody Baron held abiding but unreturned feelings for Lily Evans and Helena Ravenclaw, respectively. Although some Slytherins, such as Tom Riddle, were incapable of feeling love at all, those that did were known to cherish their passion abidingly and unconditionally, although often tragically due to an inability to act appropriately on their feelings. Interestingly, Bellatrix Lestrange held feelings for Tom Riddle himself, which was a factor in her fanatical devotion to the Death Eaters; although Lord Voldemort was incapable of loving her in return, the existence of Delphini suggests that there was at least some kind of intimacy between them.
Although Merope Riddle likely never attended Hogwarts and therefore wouldn't have been sorted into Slytherin at all, she was a descendant of Slytherin himself and fit the pattern of those sorted into his house, as she held deep and unreturned feelings for Tom Riddle Snr, who often travelled by her house on his carriage.
===Blood purity===
The Sorting Hat claimed that blood purity was a factor in selecting Slytherins. It was not the main factor, but it suggests that the Sorting Hat took into account the lineage of the student as well as traits. Muggle-born Slytherins existed, but were very rare, as noted insultingly by Scabior the Snatcher.
There had also been definite examples of half-bloods sorted into the house, including Tom Riddle, Dolores Umbridge, and Severus Snape. Harry Potter, a half-blood, was nearly sorted into Slytherin, but because he asked not to be, he was placed in Gryffindor instead. Also, pure-bloods were not automatically placed in Slytherin. There had been various examples of pure-bloods sorted into other houses; the Weasley family, Sirius Black, Neville Longbottom, and James Potter were all sorted into Gryffindor house, and Ernie Macmillan was sorted into Hufflepuff.
The concept of blood purity playing a part in picking students for Slytherin house stemmed from the founder Salazar Slytherin, who wanted a stricter policy of admission to the school — one limited strictly to pure-blood students. This was contrary to the wishes of the other founders at Hogwarts School of Witchcraft and Wizardry, who wanted to accept students of any blood status.
It is important to note that not every student in Slytherin agreed with the idea of blood purity; the great wizard Merlin was in Slytherin and he was a champion of Muggle rights, however every member of Slytherin house would still be affiliated with their founder's reputed views a thousand years later. Since the Sorting Hat would nearly always select students who shared his view for the house, many members would still give that impression of the house during their time at Hogwarts. For example, in December 1992, the password for the common room was "pure-blood".
===Rivalries===
Slytherin and Gryffindor were generally rivals in Quidditch and for the House Cup, of which the former had won six years in a row prior to Harry Potter's arrival at Hogwarts in 1991. It was also rare for Slytherin and Gryffindor students to be friendly with one another, and was also quite common for them to share animosity. There were exceptions, such as Slytherin Merlin who had a friendship with Gryffindor Sir Cadogan and Slytherin Severus Snape and Gryffindor Lily Evans, who were best friends until Snape's use of the slur "Mudblood", as well as his aspirations to be a Death Eater, caused Lily to sever their ties.
Their rivalry was particularly the case during the First and Second Wizarding Wars. During the second war, no Slytherin student joined the association known as Dumbledore's Army; however, this is likely the fault of Hermione Granger, Ron Weasley, and Harry Potter, who only invited people they trusted, and they were known for not trusting any Slytherin due to the often rivalries they had with people from that house.
There was a terrible tension, rivalry, and dislike among Gryffindors Harry Potter, Hermione Granger, and Ronald Weasley, and Slytherin Draco Malfoy to the point that Hermione even once punched Draco. Also, from the moment Harry and Draco met, they became immediate enemies, which was even before they were sorted into their respective houses.
==Reputation==
Slytherin had a well-known reputation for creating Dark witches and wizards that many would even say that every Dark witch or wizard was actually in Slytherin (it also didn't help that Voldemort himself was in Slytherin too when he was a student at Hogwarts). While it was true that many were in the house, it was untrue to say every single one of them was, as Peter Pettigrew, betrayer of James and Lily, was in Gryffindor, Quirinus Quirrell was in Ravenclaw, and Cedric Diggory, who turned to the dark side in an alternate reality, was in Hufflepuff.
It appeared that reputation had led to an ironic prejudice against the entire house. It is unknown how many Dark witches and wizards were from this house before Tom Riddle began recruiting Death Eaters, but many of them came from a family that valued blood purity and would prefer, like Riddle, to be in the house and recruit from there.
In fairer terms, there were many good witches and wizards in the house who opposed the use of the Dark Arts, as well as discrimination based on blood purity, such as Horace Slughorn, Andromeda Tonks, and Leta Lestrange. Andromeda was related to many dark witches and wizards, such as her own sister Bellatrix Lestrange, and brother-in-law Lucius Malfoy, but she chose to forsake the loyalty to her family in favour of marrying the Muggle-born Ted Tonks.
Leta was quite different from the majority of her family with her kind — albeit self-deprecating and bitter — personality, her love for both Newt Scamander and Theseus Scamander, her career ambition without ruthlessness, and her self-sacrificing bravery in the face of Gellert Grindelwald, in stark contrast to the usually compassionate Queenie of house Pukwudgie, who joined Grindelwald rather quickly. Also, the allegiance of Severus Snape was found to ultimately be towards Albus Dumbledore to the point of serving as a triple agent for the Order of the Phoenix, in stark contrast to Peter Pettigrew, the former Gryffindor who became a double agent for the Death Eaters instead. Merlin (of King Arthur fame) was also a Slytherin.
250px|thumb|left|Crabbe, Malfoy and Goyle
It might also be possible (though quite unlikely) that the Sorting Hat simply sorted anyone with ill intentions into Slytherin, regardless of whether they possessed cunning and ambition, which helped to unfairly give this house a bad name. Vincent Crabbe and Gregory Goyle were both incredibly stupid and did not have clever or cunning minds, but were still sorted into Slytherin. They could have possessed one of the minor traits as even Peter Pettigrew was not placed into Gryffindor for bravery, but for chivalry instead.
It is also likely that Crabbe and Goyle were simply placed there by process of elimination since they exhibited virtually none of the qualities valued by any of the other houses (lacking the work ethic or honesty of Hufflepuff, the academic prowess of Ravenclaw, or the bravery of Gryffindor). The Sorting Hat simply could have taken into account what house they wished to be placed in which, with their family history, was most likely Slytherin.
The behaviour of Slytherin house at the Battle of Hogwarts is also debated. The majority of their members departed Hogwarts before the battle started and a few joined their families in becoming Death Eaters. However, many of them returned to Hogwarts to fight against the Death Eaters and were led back by their Head of House, Horace Slughorn.
The traits of the house were considered obvious examples of people turning toward an ill purpose such as cunning and ambition, but they were not inherently negative. Furthermore, traits from the rest of the houses such as daring, intelligence, and loyalty could also become easily negative.
Another trait that could be seen as a negative one was self-preservation. The idea that many of them seemed to value their own lives more than the lives of others could make them less thought of and trusted, but that was not always the case. Phineas Nigellus Black gave that impression when he saw Harry Potter trying to run away because he was afraid that his presence was putting his friends in danger. He stated that "We Slytherins are brave, yes, but not stupid. For instance, when given the choice, we will always choose to save our own necks".
There were exceptions to this rule, however, such as Snape, who Harry said was a "Slytherin and... probably the bravest man I ever knew", and Regulus Black, who gave his life in an attempt to destroy one of the Horcruxes of Lord Voldemort and told his house-elf Kreacher to save himself and leave.
The truth is that while most Dark wizards were Slytherins, many members of Slytherin House did not have dark leanings and were even kind and accepting, while smaller groups of Voldemort's supporters were aligned with the other three Houses. During the Battle of Hogwarts, while all of the Slytherin students left the school before the fighting started, several of them did return with Professor Slughorn as reinforcements to join the fight against Lord Voldemort and his Death Eaters, and some decided to fight as a part of Dumbledore's Army.
==Common Room==
The Slytherin common room was in the dungeons of Hogwarts Castle and underneath the Black Lake. Because of this, the light in the common room was green. Harry Potter along with Ron Weasley entered the common room in his second year to find out if Draco Malfoy was the one opening the Chamber of Secrets. To enter the Slytherin common room one must merely speak aloud the current password in front of a stretch of a damp stone wall; once the word was uttered a concealed stone door would slide aside leaving a rectangular hole in the wall leading to the Slytherin common room. The only known Slytherin password was "pureblood", used in 1992.
==Head of House==
Founders slytherin.jpg|Salazar Slytherin(10th century)
Severus Snape.jpg|Severus Snape (1981-1997)
Slytherin's Head of House for Harry's first six years of school was Severus Snape; however, as he fled with the Death Eaters in 1997 at the end of Harry's sixth year, Potions Master Horace Slughorn became the head of Slytherin House. Upon Snape's return as Headmaster later that year, he apparently approved of Slughorn's appointment, as he did not assign any Death Eaters as the new Head of House.
==Known Slytherins==
Name 	Period Attending Hogwarts 	Notes
Bloody Baron
F.A.Q. question (Internet archive) from 	Middle Ages 	Hot-tempered lord and squire who remorsefully committed suicide for inadvertently killing the woman he loved in a fit of rage when she refused to come home from Albania with him, leaving his clothes stained with her blood. Later became the house ghost.
Merlin 	Middle Ages 	Member of King Arthur's court, advocate of Muggle rights, and arguably the most famous wizard in history.
Elizabeth Burke 	Unknown 	Headmistress of Hogwarts at some point. Now had a portrait at the base of the Grand Staircase between the Entrance Hall archway and First-floor corridor doorway, which was later hung near the Potions Classroom entrance and guarded the dungeons, telling Slytherins to be "Nasty to Mudbloods".
Gormlaith Gaunt 	1587–1594 (possibly) 	Member of the House of Gaunt. Eventually became the Dark witch of Hag's Glen and parental guardian of Isolt Sayre. Killed by William the Pukwudgie in the Duel at Ilvermorny.
Corvinus Gaunt 	c. 1700s 	Member of the House of Gaunt. Later became a juvenile plumber who hid the entrance to the Chamber of Secrets.
Katie Rayknolls 	1720s 	Captain of the Slytherin Quidditch team from 1724–1728, 1728–1732, 1732–1736, 1736–1740. 1744–1748. 1740–1744. 1748–1752, 1752–1756, 1756–1760, 1760–1764.
Vicky Bishopper 	1720s–1730s 	Captain of the Slytherin Quidditch team from 1724–1728, 1728–1732, 1732–1736, 1736–1740. 1744–1748. 1740–1744. 1748–1752, 1752–1756, 1756–1760, 1760–1764.
Robin Higgy 	1730s 	Captain of the Slytherin Quidditch team from 1724–1728, 1728–1732, 1732–1736, 1736–1740. 1744–1748. 1740–1744. 1748–1752, 1752–1756, 1756–1760, 1760–1764.
Mark Sommertime 	1730s and 1740s 	Captain of the Slytherin Quidditch team from 1724–1728, 1728–1732, 1732–1736, 1736–1740. 1744–1748. 1740–1744. 1748–1752, 1752–1756, 1756–1760, 1760–1764.
Dan Darker 	1740s 	Captain of the Slytherin Quidditch team from 1724–1728, 1728–1732, 1732–1736, 1736–1740. 1744–1748. 1740–1744. 1748–1752, 1752–1756, 1756–1760, 1760–1764.
Russell Lucky 	1740s 	Captain of the Slytherin Quidditch team from 1724–1728, 1728–1732, 1732–1736, 1736–1740. 1744–1748. 1740–1744. 1748–1752, 1752–1756, 1756–1760, 1760–1764.
Jess Lafington 	1740s and 1750s 	Captain of the Slytherin Quidditch team from 1724–1728, 1728–1732, 1732–1736, 1736–1740. 1744–1748. 1740–1744. 1748–1752, 1752–1756, 1756–1760, 1760–1764.
Kris Kolumbiko 	1750s 	Captain of the Slytherin Quidditch team from 1724–1728, 1728–1732, 1732–1736, 1736–1740. 1744–1748. 1740–1744. 1748–1752, 1752–1756, 1756–1760, 1760–1764.
David Makehay 	1750s and 1760s 	Captain of the Slytherin Quidditch team from 1724–1728, 1728–1732, 1732–1736, 1736–1740. 1744–1748. 1740–1744. 1748–1752, 1752–1756, 1756–1760, 1760–1764.
Mark Overcliff 	1760s 	
Phineas N. Black 	c. 1858–1865 	Eventually became Headmaster of Hogwarts from some point during the late 19th century to 1925. Later has a portrait in the Headmaster's office.
Sebastian Sallow 	c. 1890 	Had a dark family history.
Abraham Ronen 	 	Was the Hogwarts Charms Master in the late 19th century.
Leta Lestrange 	1908–1915 	Performed a dangerous experiment with a Jarvey in 1913, but her friend Newton Scamander took the blame for it, and got expelled. Later became an assistant of the Head of the Department of Magical Law Enforcement.
Horace Slughorn 	late 19th century and/or early 20th century	Well-connected player of favourites in his year. Eventually became Head of Slytherin House and Potions Professor of Hogwarts from 1931 to 1981 (a position he took up again from 1996 to 2015) and founder of the Slug Club.
Callidora Black 	c. 1926–1933 	Members of the House of Black.
Cassiopeia Black 	c. 1926–1933 	Members of the House of Black.
Cedrella Black 	c. 1930s 	Members of the House of Black.
Charis Black 	c. 1930–1937 	Members of the House of Black.
Dorea Black 	c. 1931–1938 	Members of the House of Black.
Lucretia Black 	c. 1936–1943 	Members of the House of Black.
Walburga Black 	c. 1936–1943 	Members of the House of Black.
Tom Riddle 	1938–1945 	Prefect and Head Boy, leader of a gang of students, Disgraced Winner of the Special Award for Services to the School, member of the Slug Club, and winner of the Medal for Magical Merit. Eventually became assistant shopkeeper at Borgin and Burkes from 1947 to around 1958, but disappeared into the deepest layers of the Dark Arts (creating several Horcruxes and an army of followers whom he named Death Eaters) and resurfaced around 1968 as the most dangerous Dark wizard of all time, orchestrating the last two most destructive Wizarding Wars in history under the alias "Lord Voldemort". Finally defeated and killed by a rebounding Killing Curse meant for Harry Potter in the Battle of Hogwarts.
Lestrange 	1938–1945 	Members of the Knights of Walpurgis and Slug Club. Eventually became two of the first Death Eaters.
Avery 	1938–1945 	Members of the Knights of Walpurgis and Slug Club. Eventually became two of the first Death Eaters.
Winky Crockett 	1940s 	Captain of the Slytherin Quidditch team from 1940–1944, 1944–1948.
Neil Lament 	1940s 	Captain of the Slytherin Quidditch team from 1940–1944, 1944–1948.
Abraxas Malfoy 	Unknown 	Lucius's father.
Alphard Black 	c. 1940s 	Member of the House of Black.
Orion Black 	c. 1940–1947 	Member of the House of Black.
Cygnus Black 	c. 1949–1956 	Member of the House of Black.
Andrew Snowy Owl 	1940s and 1950s 	Captain of the Slytherin Quidditch team from 1948–1952, 1952–1956.
Jo King 	1950s 	Captain of the Slytherin Quidditch team from 1948–1952, 1952–1956.
Alecto Carrow 	unknown 	Servants of Lord Voldemort in both the First and Second Wizarding wars; both became professors when the Death Eaters assumed control of Hogwarts in 1997.
Amycus Carrow 	unknown 	Servants of Lord Voldemort in both the First and Second Wizarding wars; both became professors when the Death Eaters assumed control of Hogwarts in 1997.
Rufus Winickus 	1950s and 1960s 	Captain of the Slytherin Quidditch team from 1956–1960, 1968–1972.
Steve Laughalot 	1960s–1970s 	Captain of the Slytherin Quidditch team from 1956–1960, 1968–1972.
Rodolphus Lestrange 	c. 1960s–1970s 	Member of a gang inspired by the Dark Arts. Eventually married Bellatrix Black and became a devoted Death Eater.
Bellatrix Black 	c. 1962–1969 	Eventually married Rodolphus Lestrange and became a devoted Death Eater. Killed by Molly Weasley in the Battle of Hogwarts.
Andromeda Black 	c. 1963–1970 	Disowned member of the House of Black. Later married Edward Tonks and became an ally of the Order of the Phoenix.
Lucius Malfoy 	c. 1965–1972 	Prefect and member of the Slug Club. Eventually married Narcissa Black and became second-in-command of the Death Eaters during the First Wizarding War, Chairman of the Hogwarts Board of Governors from 1981 to 1993, Advisor to the Minister for Magic from 1990 to 1996, and disgraced Death Eater throughout the Second Wizarding War. Defected during the Battle of Hogwarts.
Narcissa Black 	c. 1966–1973 	Eventually married Lucius Malfoy and became an ally of the Death Eaters until her defection in Battle of Hogwarts.
Stuart Craggy 	1960s 	Captain of the Slytherin Quidditch team from 1964–1968, 1960–1964.
Jody Jacknife 	1960s 	Captain of the Slytherin Quidditch team from 1964–1968, 1960–1964.
Evan Rosier 	1960s or 1970s 	Members of a gang inspired by the Dark Arts. Eventually became a duo of Death Eaters at the height of the First Wizarding War. Killed by Alastor Moody in 1980.
Wilkes 	1960s or 1970s 	Members of a gang inspired by the Dark Arts. Eventually became a duo of Death Eaters at the height of the First Wizarding War. Killed by Alastor Moody in 1980.
Avery 	1960s or 1970s 	Later became a Death Eater.
Mulciber 	1960s or 1970s 	Later became a Death Eater, specialising in the Imperius Curse, during the First Wizarding War.
Emma Vanity 	1970s 	Captain of the Slytherin Quidditch team from 1972–1976.
Severus Snape 	1971–1978 	Brains of a gang inspired by the Dark Arts and member of the Slug Club. Eventually became a devoted Death Eater at the height of the First Wizarding War (until his last-minute defection), Head of Slytherin House and Potions Master of Hogwarts from 1981 to 1996, Professor of Defence Against the Dark Arts of Hogwarts during the 1996–1997 school year, Headmaster of Hogwarts for a majority of the 1997–1998 school year, and double agent within the Order of the Phoenix and Death Eaters throughout the Second Wizarding War. Murdered by Lord Voldemort's snake Nagini in the Battle of Hogwarts.
Regulus Black 	c. 1972–1979 	Seeker on the Slytherin Quidditch team and member of the Slug Club. Eventually became a Death Eater, but defected and gave his life in an attempt to destroy one of the Horcruxes.
Dolores Umbridge 	Unknown 	Unlikeable model in her year. Eventually became Head of the Improper Use of Magic Office at some point, Senior Undersecretary to the Minister for Magic from 1990 to 1998, Defence Against the Dark Arts Professor and "High Inquisitor" of Hogwarts during the 1995–1996 school year, Headmistress of Hogwarts from April to June 1996, and Head of the Muggle-Born Registration Commission from 1997 to 1998. Imprisoned for her crimes against Muggle-borns.
Scabior 	Unknown 	Snatcher during the height of the Second Wizarding War.
Merula Snyde's father 	Unknown 	Death Eater. Merula's father. Imprisoned for allegiance to Lord Voldemort.
Merula Snyde's mother 	Unknown 	Member of the Frog Choir. Death Eater. Merula's mother. Imprisoned for allegiance to Lord Voldemort.
Duncan Ashe 	1970s–1980s 	Died during his school years and stayed at the school as a ghost.
Lucinda Talkalot 	1970s–1980s 	Captain of the Slytherin Quidditch team from 1976–1980.
Third Floor Corridor Slytherin prefect 	c. 1980s 	Prefect.
Felix Rosier 	1980–1987 	Prefect. Became a Dragonologist.
Barnaby Lee 	1984–1991 	Had a passion for Care of Magical Creatures. Member of the Hippogriff Club. His parents were Death Eaters.
Ismelda Murk 	1984–1991 	Had a passion for curses. Member of the Sphinx Club.
Merula Snyde 	1984–1991 	Student whose parents were Death Eaters. Member of the Sphinx Club. Joined R.
Liz Tuttle 	1984–1991 	Had a passion for Care of Magical Creatures. Member of the Hippogriff Club.
Gemma Farley 	1980s and 1990s 	Prefect.
Marcus Flint 	1986–1994 	Captain and Chaser of the Slytherin Quidditch team.
Dungeon Corridor Slytherin prefect (I) 	c. 1986–1993 	Prefect who often patrolled the Dungeon Corridor.
Dungeon Corridor Slytherin prefect (II) 	c. 1986–1993 	Prefect who often patrolled the Dungeon Corridor.
Lucian Bole 	1988–1995 	Beaters for the Slytherin Quidditch team during the 1990s.
Peregrine Derrick 	1988–1995 	Beaters for the Slytherin Quidditch team during the 1990s.
Adrian Pucey 	1989–1996 	Chaser of the Slytherin Quidditch team until 1993.
Cassius Warrington 	1989–1996 	Chaser of the Slytherin Quidditch team from 1993 to 1996 and member of the Inquisitorial Squad.
Flora Carrow 	1990s 	Member of the Slug Club
Hestia Carrow 	1990s 	Member of the Slug Club
Miles Bletchley 	1990s 	Keeper of the Slytherin Quidditch team from 1991 to 1995.
Terence Higgs 	1990s 	Seeker of the Slytherin Quidditch team in the 1980s and 1990s.
Urquhart 	1990s 	Captain and Chaser of the Slytherin Quidditch team during the 1996–1997 school year.
Vaisey 	1990s 	Chaser of the Slytherin Quidditch team in 1996.
Sixth-Year Inquisitorial Squad Member 	c.1990–1997 	Member of the Inquisitorial Squad.
Draco Malfoy 	1991–1998 	Prefect, Seeker for the Slytherin Quidditch team, member of the Inquisitorial Squad and later blackmailed by Lord Voldemort to become a Death Eater (defected). Eventually married Astoria Greengrass.
Vincent Crabbe 	1991–1998 	Beater of the Slytherin Quidditch team from 1995 to 1997; member of the Inquisitorial Squad; became a Dark wizard in his seventh year. Killed by his own Fiendfyre during the Battle of Hogwarts.
Gregory Goyle 	1991–1998 	Beater of the Slytherin Quidditch team from 1995 to 1997; member of the Inquisitorial Squad; became a Dark wizard in his seventh year.
Millicent Bulstrode 	1991–1998 	Member of the Inquisitorial Squad
Pansy Parkinson 	1991–1998 	Prefect and member of the Inquisitorial Squad.
Blaise Zabini 	1991–1998 	Member of the Slug Club.
Daphne Greengrass 	1991–1998 	Sister of Astoria Greengrass.
Theodore Nott 	1991–1998 	Friend of Draco Malfoy who illegally created a Time-Turner in his adult life.
Tracey Davis 	1991–1998 	
Bespectacled Slytherin girl 	1991–1998 	
Unidentified blonde Slytherin girl 	1991–1998 	Attended her Charms O.W.L. exam. Evacuated before the start of the Second Wizarding War. Please note that she may be either Tracey Davis or Daphne Greengrass.
Unidentified Slytherin boy in the Battle of Hogwarts 	1991–1998 	Locked in the Dungeons but when the cell exploded, fought in the Battle of Hogwarts.
Unidentified Slytherin girl (II) 	1991–1998 	Sat next to Harry in Charms class.
Unidentified Slytherin girl (III) 	1991–1998 	Sat next to Ron in Defence Against the Dark Arts class.
Bridget 	1992–1999 	Duelling Club member.
Harper 	1992–1999 	Reserve Seeker of the Slytherin Quidditch team in 1996.
Malcolm Baddock 	1994–2001 	
Graham Pritchard 	1994–2001 	
Mafalda 	1994–2001 	An estranged member of the Weasley family.
Zoe Accrington 	1990s 	Seen walking around in the 1993–1994 school year.
Uchi Akimbo 	1990s 	Challenged Harry to a duel.
Tabitha Bainbridge 	1990s 	Seen walking around in the 1993–1994 school year.
Sadie Baldock 	1990s 	Seen walking around in the 1993–1994 school year.
Tristram Bassenthwaite 	1990s 	Seen walking around in the 1993–1994 school year.
Darius Berrow 	1990s 	Seen walking around in the 1993–1994 school year.
Yatin Bhagat 	1990s 	Seen walking around in the 1993–1994 school year.
Kinjal Bhatia 	1990s 	Seen walking around in the 1993–1994 school year.
Cameron Boyle 	1990s 	Seen walking around in the 1993–1994 school year.
Diane Carter 	1990s 	Challenged Harry to a duel.
Fergus Cowley 	1990s 	Member of the Duelling Club in the 1996–1997 school year.
Irving Cram 	1990s 	Guarded off-limit places.
Sebastian Daley 	1990s 	Seen walking around in the 1993–1994 school year.
Simon Dedworth 	1990s 	Guarded off-limit places.
Bowen Duffield 	1990s 	Seen walking around in the 1993–1994 school year.
Curtis Evercreech 	1990s 	Seen walking around in the 1993–1994 school year.
Amy Frome 	1990s 	Seen walking around in the 1993–1994 school year.
Damon Gosforth 	1990s 	Seen walking around in the 1993–1994 school year.
Mathilda Greenford 	1990s 	Seen walking around in the 1993–1994 school year.
Amrish Gupta 	1990s 	Seen walking around in the 1993–1994 school year.
Yurika Haneda 	1990s 	Seen walking around in the 1993–1994 school year.
Niles Hanley 	1990s 	Usually spent time by the Viaduct.
Maynard Hatton 	1990s 	Ran a Duelling Club in the 1996–1997 school year.
Manami Ichijoh 	1990s 	Seen walking around in the 1993–1994 school year.
Malcolm Ilminster 	1990s 	Seen walking around in the 1993–1994 school year.
Trupti Kadam 	1990s 	Seen walking around in the 1993–1994 school year.
Sourav Kartik 	1990s 	Seen walking around in the 1993–1994 school year.
Zubeida Khan 	1990s 	Seen walking around in the 1993–1994 school year.
Hirohisa Kubo 	1990s 	Seen walking around in the 1993–1994 school year.
Maxwell Lazenby 	1990s 	Seen walking around in the 1993–1994 school year.
Holden Ledbury 	1990s 	Guarded off-limit places.
Gabriel Lithgow 	1990s 	Seen walking around in the 1993–1994 school year.
Xander Lofthouse 	1990s 	Tried to steal Harry's borrowed broomstick.
Scarlett Lympsham 	1990s 	Played informal Quidditch matches.
Charles Machin 	1990s 	Seen walking around in the 1993–1994 school year.
Thomas McGruder 	1990s 	Challenged Harry to a duel.
Gertrude Meads 	1990s 	Seen walking around in the 1993–1994 school year.
Sylvia Melville 	1990s 	Seen walking around in the 1993–1994 school year.
Glynis Mexborough 	1990s 	Seen walking around in the 1993–1994 school year.
Byron Miller 	1990s 	Seen walking around in the 1993–1994 school year.
Titus Mitcham 	1990s 	Seen walking around in the 1993–1994 school year.
Agnes Monkleigh 	1990s 	Challenged Harry to duel.
Graham Montague 	1990s 	Played as a Chaser on the Slytherin Quidditch team from 1993–1996. Member of the Inquisitorial Squad.
Selina Moore 	1990s 	Seen walking around in the 1993–1994 school year.
Timothy Morcott 	1990s 	Challenged Harry to a duel.
Daryl Morden 	1990s 	Played informal Quidditch matches.
Shawn Morris 	1990s 	Challenged Harry to a duel.
Adelaide Murton 	1990s 	Seen walking around in the 1993–1994 school year.
Irfan Mustaq 	1990s 	Member of the Duelling Club.
Tracey Nettlebed 	1990s 	Told secrets about many students for her own satisfaction.
Garrick Newbourne 	1990s 	Seen walking around in the 1993–1994 school year.
Nerys Orpington 	1990s 	Seen walking around in the 1993–1994 school year.
Penelope Padgett 	1990s 	Prefect. Eventually married Grim Fawley and joined the Ministry of Magic as an Auror. Went missing in 2015.
Ona Parangyo 	1990s 	Seen walking around in the 1993–1994 school year.
Mildred Peebles 	1990s 	Seen walking around in the 1993–1994 school year.
Ursula Penkridge 	1990s 	Seen walking around in the 1993–1994 school year.
Horatio Pershore 	1990s 	Seen walking around in the 1993–1994 school year.
Ronald Phipps 	1990s 	Seen walking around in the 1993–1994 school year.
Abigail Pugh 	1990s 	Seen walking around in the 1993–1994 school year.
Gordon Pummell 	1990s 	Guarded off-limit places.
Bastien Queensbury 	1990s 	Competed in the Gobstones tournament in the 1996–1997 school year.
Hayley Quentin 	1990s 	Seen walking around in the 1993–1994 school year.
Viola Richmond 	1990s 	Seen walking around in the 1993–1994 school year.
Michael Robinson 	1990s 	Seen walking around in the 1993–1994 school year.
Muriel Rothley 	1990s 	Seen walking around in the 1993–1994 school year.
Hortense Rowland 	1990s 	Seen walking around in the 1993–1994 school year.
Megan Rowstock 	1990s 	Seen walking around in the 1993–1994 school year.
Gideon Scalby 	1990s 	Seen walking around in the 1993–1994 school year.
Poonima Shah 	1990s 	Seen walking around in the 1993–1994 school year.
Olivia Shardlow 	1990s 	Seen walking around in the 1993–1994 school year.
Bhupen Shastri 	1990s 	Seen walking around in the 1993–1994 school year.
Archana Shetty 	1990s 	Seen walking around in the 1993–1994 school year.
Reiko Shibazaki 	1990s 	Seen walking around in the 1993–1994 school year.
Grant Sparkford 	1990s 	Seen walking around in the 1993–1994 school year.
Cole Spencer 	1990s 	Seen walking around in the 1993–1994 school year.
Norman Stacey 	1990s 	Seen walking around in the 1993–1994 school year.
Imogen Stretton 	1990s 	Guarded off-limit places.
Junpei Suruga 	1990s 	Competed in the Wizard Skittles tournament in the 1996–1997 school year.
Alex Sykes 	1990s 	Guarded off-limit places.
Atsushi Takagi 	1990s 	Seen walking around in the 1993–1994 school year.
Vikram Thakur 	1990s 	Competed in the Wizard Skittles tournament in the 1996–1997 school year.
Heather Thatcham 	1990s 	Seen walking around in the 1993–1994 school year.
Spencer Whiddon 	1990s 	Seen walking around in the 1993–1994 school year.
Phylis Whitehead 	1990s 	Seen walking around in the 1993–1994 school year.
Ella Wilkins 	1990s 	Seen walking around in the 1993–1994 school year. Competed in the Exploding Snap tournament in the 1996–1997 school year.
Peter 	1990s 	Duelling Club member.
Pike 	1990s 	Member of Draco's gang.
Rachel 	1990s 	Duelling Club member.
Roy 	1990s 	Duelling Club member.
Nigel's nephew 	1990s 	Had an uncle who married a Muggle woman, which angered his father.
Sixth-year Inquisitorial Squad member 	1990s 	Member of the Inquisitorial Squad.
Slytherin Duelling Club Captain 	1990s 	Duelling Club Captain for Slytherin in 1996.
Slytherin student that blames Harry Potter (I) 	1990s 	Blamed Harry for being a champion in the Triwizard Tournament.
Slytherin student that blames Harry Potter (II) 	1990s 	Blamed Harry for being a champion in the Triwizard Tournament.
Slytherin Wizard Duelling Champion 	1990s 	Duelling champion for Slytherin.
Slytherin Wizard's Chess champion 	1990s 	Wizard's Chess Captain for Slytherin.
Third-floor Slytherin Prefect 	1990s 	Prefect.
Unidentified Slytherin Beater 	1990s 	Beater on the Slytherin Quidditch team.
Unidentified Slytherin Beater (II) 	1990s 	Beater on the Slytherin Quidditch team.
Unidentified Slytherin girl at the Battle of Hogwarts 	1990s 	Fought in the Battle of Hogwarts.
Unidentified Slytherin girl at the Battle of Hogwarts (III)	1990s 	Locked in the Dungeons but when the cell exploded, fought in the Battle of Hogwarts.
Unidentified Slytherin girl in the Battle of Hogwarts (IV) 	1990s 	Locked in the Dungeons but when the cell exploded, fought in the Battle of Hogwarts.
Unidentified Slytherin girl (I) 	1990s 	Member of the Inquisitorial Squad.
Unidentified Slytherin Keeper 	1990s 	Keeper on the Slytherin Quidditch team.
Colby Frey 	2008–? 	
Fischer Frey 	2008–? 	
Cassandra Vole 	2008–? 	
Albus Potter 	2017–2024 	The second son and child of the famous Harry Potter. The only member of his family to be sorted into Slytherin House.
Scorpius Malfoy 	2017–2024 	The only child and son of Draco and Astoria Malfoy.
==See also==
*Salazar Slytherin
*Slytherin's Locket
*Slytherin Quidditch team
*Gryffindor
*Hufflepuff
*Ravenclaw
==Behind the scenes==
*The fact that J. K. Rowling intended to place a character named Mafalda, who was the daughter of a Squib and a Muggle, in Slytherin, suggests that Rowling at least does not view the Slytherin House desire for blood-purity as particularly influential upon the Sorting Hat. Also, as Voldemort and Snape are both half-bloods, there seems no reason to suspect a "blood-pure" Slytherin.Extra Stuff: Mafalda at 
*Slytherin students seem to possess a certain skill in Potions. Harry's two Potions masters, Severus Snape and Horace Slughorn, both belonged to the Slytherin house. However, it is possible that this talent in Slytherin students could merely be a coincidence, as students from other houses at Hogwarts also shared this talent, such as Harry Potter's mother, Lily Potter (nee Evans) (whose skills were shown through Slughorn's many references to her skill in the subject throughout most of Harry Potter and the Half-Blood Prince, film), and Hermione Granger who were both Gryffindors, and Penny Haywood who was in Hufflepuff.
*Slytherin students also seem to be gifted in Occlumency. Most of the known Occlumens in the books come from Slytherin (namely Voldemort, Severus Snape, Bellatrix Lestrange, Draco Malfoy, and Horace Slughorn).
*J. K. Rowling stated in a PotterCast interview that some Slytherins were among the reinforcements brought by Slughorn during the Battle of Hogwarts.
*J. K. Rowling stated that by 2017, Slytherin is no longer the pure-blood bastion that it once was. However, its dark reputation still lingers, hence the reason for Albus Potter's fears.http://www.the-leaky-cauldron.org/2007/7/30/j-k-rowling-web-chat-transcript
*It is interesting to note that Slytherin is both the first Hogwarts house mentioned in the series (by Draco Malfoy), as well as the last mentioned in the series (by Albus Potter).
*In early drafts of , members of the Slytherin house were known as "Slytherites".Very early draft of Philosopher's Stone (Page 1)
*Slytherin House was the winner of the first, third and seventh house cup on Pottermore.Congratulations Slytherin on Winning...
*The Sorting Hat considered placing Gilderoy Lockhart in Slytherin, as he showed cunning, resourcefulness and ambition, which are some of the qualities that fit Slytherin House. However, it finally chose Ravenclaw.Pottermore biography of Gilderoy Lockhart. audio clip by J. K. Rowling
*In the Game Boy Advance Game Mother 3, there is an enemy called Slitherhen. The name is a reference to Slytherin.Let's Test MOTHER 3 #15 - The Magyspy Scene That Isn't What You Think But Whatever
*Peter Pettigrew was a Hatstall and considered for Sorting into Slytherin, but, in the end, was Sorted into Gryffindor.
*, the actress who portrayed Pansy Parkinson in the films, was sorted into Slytherin on Pottermore.
===Pottermore House Cup===
*Slytherin won the first house cup with 72,734,274 house points.
*Slytherin came second for the second house cup with 48,495,275 points.
*Slytherin won the third house cup with 26,990,924 points.
*Slytherin came second for the fourth house cup with 24,865,387.
*Slytherin came second for the fifth house cup with 27,795,479 points.
*Slytherin came fourth for the sixth house cup with 31,926,625 points.
*Slytherin won the seventh house cup with 52,652,850 points.
*Slytherin came second for the eighth house cup with 26,564,159 points.
===Translations===
In translated editions, "Slytherin" remains the same and is used for the Arabic, Croatian, Danish, German, Hebrew, Icelandic, Indonesian, Irish, Polish, Portuguese (Portugal), Spanish, Swedish, Turkish, and Vietnamese editions. The following translations have changed the name:
Language 	Translation 	Note
Afrikaans 	Sibberin 	
Albanian 	Gjarpërblertit 	"Green snake"
Bulgarian 	Слидерин 	
Chinese (Simplified) 	斯莱特林 	
Chinese (Traditional)	史萊哲林 	
Czech 	Zmijozel 	from Zmije "viper snake" or Zmij "adder"
Dutch 	Zwadderich 	from the old Dutch noun zwadder "snake poison"; zwadderig "dirty"
Finnish 	Luihuinen 	from the adjective luihu "deceptive" or "sneaky"
French 	Serpentard 	from serpent "snake" and the suffix -ard which gives it a pejorative consonance
Georgian 	სლიზერინი 	
Greek 	Σλίθεριν 	
Hebrew 	סלית'רין 	
Hindi 	नगशक्ति 	Nāga "Snake"; śakti "power"
Hungarian 	Mardekár 	mar "bite" (like snake), de kár "but it's a pity"
Italian 	Serpeverde 	"Green Serpent"
Japanese 	スリザリン 	
Korean 	슬리데린 	
Latvian 	Slīdenis 	
Lithuanian 	Klastūnynas 	from the noun klasta "guile" or "ruse".Also could be translated as "viper" or "scoundrel"
Macedonian 	Змијолик 	"Snakeface"
Norwegian 	Smygard 	
Persian 	اسلایترین 	
Portuguese (Brazil) 	Sonserina 	from Sonso a term for "someone who pretends to be innocent or harmless"
Romanian 	Viperini 	"Vipers"
Russian 	Слизерин /Слайзерин /Пресмыкайс	Слизь "slime"/Пресмыкаться "to slither"
Serbian 	Слитерин 	
Slovak 	Slizolin 	from sliz, meaning "slime"
Slovenian 	Spolzgad 	
Thai 	สลิธีริน 	
Ukrainian 	Слизерин 	
Welsh 	Slafenog 	
==Appearances==
* 
*
*Harry Potter and the Prisoner Of Azkaban (film)
*Harry Potter and the Goblet Of Fire (film)
*Harry Potter and the Order of the Phoenix (film)
*Harry Potter and the Half-Blood Prince (film)
*Harry Potter and the Deathly Hallows, Part 1
*Harry Potter and the Deathly Hallows, Part 2
==Notes and references==
Category:Entire Slytherin House