was the 71st emperor of Japan, according to the traditional order of succession. His given name was Takahito (尊仁、たかひと).

Go-Sanjō's reign spanned the years from 1068 through 1073.

This 11th century sovereign was named after Emperor Sanjō and go- (後), translates literally as "later;" and thus, he is sometimes called the "Later Emperor Sanjō", or, in some older sources, may be identified as "Sanjō, the second" or as "Sanjō II."

It was during, and due to, his reign that the Fujiwara grip on power was broken; following Go-Sanjo's rule, their power continued to wane until 1150, where any semblance of their power disappeared.

Biography

Before his ascension to the Chrysanthemum Throne, his personal name (諱, imina) was Takahito-shinnō (尊仁親王, たかひとしんのう).

Takahito-shinnō was the second son of Emperor Go-Suzaku. His mother was Empress (kōgō) Sadako (禎子内親王), the third daughter of Emperor Sanjō, making him the first Emperor in 170 years (since Emperor Uda) whose mother was not of Fujiwara descent paternally. His father and mother were grandchildren of Fujiwara no Michinaga maternally. The Empress mother of the future Emperor Go-Sanjō was also known as Tishi, and a Yōmei-mon In (1012–94). His lack of connection with the Fujiwara meant he owed them no special loyalty - this meant that he could afford to oppose them.

Events of Go-Sanjō's life 
Because Prince Takahito was not of Fujiwara descent, the Kampaku, Fujiwara no Yorimichi neglected him, but Emperor Go-Suzaku decreed that upon his elder brother Chikahito's enthronement (as Emperor Go-Reizei), that Takahito would become the heir (kōtaitei).  As Emperor Go-Reizei had no children of his own, upon his death, Takahito became emperor.

 May 22, 1068 (Jiryaku 4, 19th day of the 4th month): In the 4th year of Emperor Go-Reizei's reign (後冷泉天皇四年), he died at age 44; and the succession (senso) was received by his younger half-brother.  Shortly thereafter, Emperor Go-Sanjo is said to have acceded to the throne (sokui).

Yorimichi's younger brother Norimichi became kampaku, but Go-Sanjō was determined to rule personally.

 1069 (Enkyū 1): Go-Sanjō issued the Enkyū Shōen Regulation Decree (Enkyū is the name of the era in which the decree was issued); and the emperor called for the establishment of a government office to certify Shōen records.
 1070 (Enkyū 2):  Go-Sanjō ordered a preliminary system of laws and a bureaucracy for regulating silk.
 1072 (Enkyū 4): As the Ritsuryō system of centralized authority had largely failed by this time, Go-Sanjō became interested in strengthening the finances of the Imperial Household.
 January 18, 1073 (Enkyū 4, 8th day of the 12th month): In the 6th year of Emperor Go-Sanjō's reign (桓武天皇六年), the emperor abdicated in favor of his son, and the succession (senso) was received by his son.  Shortly thereafter, Emperor Shirakawa is said to have acceded to the throne (sokui).
 May 11, 1073 (Enkyū 5, 21st day of the 4th month): Go-Sanjō entered the Buddhist priesthood; and his new priestly name became Kongō-gyō.
 June 15, 1073 (Enkyū 5, 7th day of the 5th month): The former-Emperor Go-Sanjō died at the age of 40.

Go-Sanjō is buried amongst the "Seven Imperial Tombs" at Ryōan-ji in Kyoto.

The actual site of Go-Sanjō's grave is known.  This emperor is traditionally venerated at a memorial Shinto shrine (misasagi) at Kyoto.

The Imperial Household Agency designates this location as Go-Sanjō's mausoleum.  It is formally named Yensō-ji no misasagi.

The mound which commemorates the Hosokawa Emperor Go-Sanjō is today named Shu-zan. The emperor's burial place would have been quite humble in the period after Go-Sanjō died.

These tombs reached their present state as a result of the 19th century restoration of imperial sepulchers (misasagi) which were ordered by Emperor Meiji.

Kugyō
 is a collective term for the very few most powerful men attached to the court of the Emperor of Japan in pre-Meiji eras.  Even during those years in which the court's actual influence outside the palace walls was minimal, the hierarchic organization persisted.

In general, this elite group included only three to four men at a time. These were hereditary courtiers whose experience and background would have brought them to the pinnacle of a life's career.  During Go-Sanjō's reign, this apex of the Daijō-kan included: 
 Kampaku, Fujiwara Norimichi (997–1075).
 Daijō-daijin, Fujiwara Norimichi.
 Sadaijin, Fujiwara Morozone, 1042–1101.
 Udaijin, Minamoto no Morofusa
 Naidaijin
 Dainagon

Eras of Go-Sanjō's reign
The years of Go-Sanjō's reign are more specifically identified by more than one era name or nengō.
 Jiryaku      (1065–1069)
 Enkyū  (1069–1074)

Consorts
Go-Sanjō had three consorts.

Empress (chugū): Imperial Princess Kaoruko (馨子内親王) later Saiin-no Kogo (西院皇后),  Emperor Go-Ichijō‘s daughter

Consort: Fujiwara Shigeko (藤原茂子; d.1062), Fujiwara Kinnari‘s daughter and Fujiwara Yoshinobu‘s adopted daughter
 First Daughter: Imperial Princess Satoko (聡子内親王; 1050-1131)
 First son: Imperial Prince Sadahito (貞仁親王) later Emperor Shirakawa
 Second Daughter: Imperial Princess Toshiko (俊子内親王; 1056-1132)
 Third Daughter: Imperial Princess Yoshiko (佳子内親王; 1057-1130)
 Fourth Daughter: Imperial Princess Tokushi (篤子内親王; 1060–1114) married Emperor Horikawa

Consort: Minamoto Motoko (源基子; 1047-1134), Minamoto Motohira‘s daughter
 Second son: Imperial Prince Sanehito (実仁親王; 1071-1085), a descendant of the Minamoto clan - Go-Sanjō Genji.
 Third son: Imperial Prince Sukehito (輔仁親王; 1073-1119), a descendant of the Minamoto clan - Go-Sanjō Genji.

Consort: Fujiwara Akiko (藤原昭子), Fujiwara Yorimune’s daughter

Lady-in-waiting: Taira Chikako (平親子), Taira Tsunakuni’s daughter
 Son: Fujiwara Arisuke (藤原有佐; d.1131), adopted by Fujiwara no Akitsuna

Ancestry

Notes

References
 Brown, Delmer M. and Ichirō Ishida, eds. (1979).  Gukanshō: The Future and the Past. Berkeley: University of California Press. ;  OCLC 251325323
 Moscher, Gouverneur. (1978). Kyoto: A Contemplative Guide. ;  OCLC 4589403
 Ponsonby-Fane, Richard. (1959).  The Imperial House of Japan. Kyoto: Ponsonby Memorial Society. OCLC 194887
 Titsingh, Isaac. (1834). Nihon Odai Ichiran; ou,  Annales des empereurs du Japon.  Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland.  OCLC 5850691
 Varley, H. Paul. (1980). Jinnō Shōtōki: A Chronicle of Gods and Sovereigns. New York: Columbia University Press. ;  OCLC 59145842

See also
 Emperor of Japan
 List of Emperors of Japan
 Imperial cult
 MINAMOTO Takahito
 MINAMOTO family
 Emperor Go-Reizei
 Emperor Shirakawa

Japanese emperors
Minamoto clan
People from Kyoto
Japanese nobility
Nobility from Japan
Deified Japanese people
Deified men
1032 births
1073 deaths
People of Heian-period Japan
11th-century Japanese monarchs
Japanese retired emperors
Japanese Buddhist monarchs
Heian period Buddhist clergy