# Hasan-i Sabbah

Hasan al-Sabbah also known as Hasan I of Alamut, was a religious and military leader. He was the founder of the Nizari Ismai'li sect widely known as the Hashshashin or the Order of Assassins, as well as the Nizari Ismaili state, ruling from 1090 to 1124 AD.
Alongside his role as a formidable leader, Sabbah was an accomplished scholar of mathematics, most notably in geometry, as well as astronomy and philosophy, especially in epistemology. It is narrated that Hasan and the Persian polymath Omar Khayyam were close friends since their student years. He and each of the later Assassin leaders came to be known in the West as the Old Man of the Mountain, a name given to the sect's leader in the writings of Marco Polo that referenced the sect's possession of the commanding mountain fortress of Alamut Castle.

## Sources

Hasan is thought to have written an autobiography, which did not survive but seems to underlie the first part of an anonymous Isma'ili biography entitled Sargozasht-e Seyyednā (Persian: سرگذشت سیدنا). The latter is known only from quotations made by later Persian authors. Hasan also wrote a treatise, in Persian, on the doctrine of ta'līm, called, al-Fusul al-arba'a The text is no longer in existence, but fragments are cited or paraphrased by al-Shahrastānī and several Persian historians.

## Early life and conversion
### Qom and Rayy

The possibly autobiographical information found in Sargozasht-i Seyyednā is the main source for Hasan's background and early life. According to this, Hasan al-Sabbāh was born in the city of Qom, Persia in the 1050s to a family of Twelver Shia. His father, a Kufan Arab reportedly of Yemenite origins, had left the Sawād of Kufa (located in modern Iraq) to settle in the town of Qom, one of the first centres of Arab settlement in Persia and a stronghold of Twelver Shia.
Early in his life, his family moved to Rayy. Rayy was a city that had a history of radical Islamic thought since the 9th century, with Hamdan Qarmaṭ as one of its teachers.
It was in this religious centre that Hasan developed a keen interest in metaphysical matters and adhered to the Twelver code of instruction. During the day he studied at home, and mastered palmistry, languages, philosophy, astronomy and mathematics (especially geometry).
Rayy was also the home of Isma'ili missionaries in the Jibal. At the time, Isma'ilism was a growing movement in Persia and other lands east of Egypt. The Persian Isma'ilis supported the da'wa ("mission") directed by the Fatimid caliphate of Cairo and recognized the authority of the Imam-Caliph al-Mustansir (d. 1094), though Isfahan, rather than Cairo, may have functioned as their principal headquarters. The Ismā'īlī mission worked on three layers: the lowest was the fida'i or foot soldier, followed by the rafīk or comrade, and finally the dā‘ī or missionary. It has been suggested that the popularity of the Ismā'īlī religion in Persia was due to the people's dissatisfaction with the Seljuk rulers, who had recently removed local rulers.

### Conversion to Ismailism and training in Cairo

At the age of 17, Hasan converted and swore allegiance to the Fatimid caliph in Cairo. Hasan's studies did not end with his crossing over. He further studied under two other dā‘is, and as he proceeded on his path, he was looked upon with eyes of respect.
However, Hasan did not initially travel to Cairo. Some historians have postulated that Hasan, following his conversion, was playing host to some members of the Fatimid caliphate, and this was leaked to the anti-Fatimid and anti-Shī‘a vizier Nizam al-Mulk. This prompted his abandoning Rayy and heading to Cairo in 1076.
Hasan took about 2 years to reach Cairo. Along the way he toured many other regions that did not fall in the general direction of Egypt. Isfahan was the first city that he visited. He was hosted by one of the Missionaries of his youth, a man who had taught the youthful Hasan in Rayy. His name was Resi Abufasl and he further instructed Hasan.
From here he went to Arran (current Azerbaijan), hundreds of miles to the north, and from there through Armenia. Here he attracted the ire of priests following a heated discussion, and Hasan was thrown out of the town he was in.
He then turned south and traveled through Iraq, reached Damascus in Syria. He left for Egypt from Palestine. Records exist, some in the fragmentary remains of his autobiography, and from another biography written by Rashid-al-Din Hamadani in 1310, to date his arrival in Egypt at 30 August 1078.
It is unclear how long Hasan stayed in Egypt: about 3 years is the usually accepted amount of time. He continued his studies here, and became a full missionary.

## Capture of Alamut

His search for a base from which to guide his mission ended when in 1088 he found the castle of Alamut in the Rudbar area (modern Qazvin, Iran). It was a fort that stood guard over a valley that was about fifty kilometers long and five kilometers wide. This fortress had been built about the year 865; legend has it that it was built by a king who saw his eagle fly up to and perch upon a rock, a propitious omen, the importance of which this king, Wah Sudan ibn Marzuban, understood. Likening the perching of the eagle to a lesson given by it, he called the fort Aluh Amu(kh)t: the "Eagles' Teaching".
Hasan's takeover of the fort was conducted without any significant bloodshed. To effect this transition Hasan employed a patient and deliberate strategy, one which took the better part of two years to effect. First Hasan sent his Daʻiyyīn and Rafīks to win over the villages in the valley, and their inhabitants. Next, key people amongst this populace were converted, and finally, in 1090, Hasan took over the fort by infiltrating it with his converts.
While legend holds that after capturing Alamut Hasan devoted himself to isolated study, this narrative is highly doubtful, given his extensive recruiting and organizational involvement in the growing Ismā'īlī insurrections in Persia and Syria.

## Foreign views: Marco Polo and China

The leaders of Nizari Isma'ilis in Persia, were designated by Marco Polo using a Syrian equivalent term known in Europe at that time, as Elder or Old Man of the Mountain. Polo's travelogue (ca. 1300) describes the Old Man of the Mountain as a charlatan who devised plots to convert young men to his sect. At the court of the Old Man of the Mountain "they were educated in various languages and customs, courtly etiquette, and trained in martial and other skills". At Alamut they had "impressive libraries whose collections included books on various religious traditions, philosophical and scientific texts, and scientific equipment".
Xishiji （Chinese: 西使記）, a Chinese manuscript completed in 1263, relates a story similar to that of Polo. The sect leaders "ordered to send assassins to hide in those kingdoms which did not surrender. They stabbed their lords, and women as well, and they died".

## Nizari doctrine

Historians and scholars identify Hasan-i Sabbah as the founder of the Nizari Assassins and their doctrine. It developed during the struggle for succession of Nizar to the Fatimid throne in Cairo that eventually laid the foundation of the Nizari Isma'ilism Shia Islam. Since then, as a basic element of conservative nature, the Ismaili Imamate includes a hidden imam, in addition to the visible (or hazar, meaning apparent) imam of the time, acting as such in a community. An important task of the latter is the proliferation of the doctrine, and of the undisclosed imam's spiritual guidance, in learning centers having instructors proficient in teaching techniques.
Devotion of the "true believers" having "absolute faith" in the beliefs is another element originating from the times of Sabbah in Northern Iran, who reportedly "was so devout that he even had one of his sons executed after he was accused of drunkenness."
A Nizari assassin is identified as fida'i or devotee, "who offers his life for others or in the service of a particular cause."
In Nizari literature, in a major departure from conventional Islamic tradition, Hasan declared Persian to be the language of holy literature for Nizaris – a decision that resulted in all the Nizari Ismā'īlī literature from Persia, Syria, Afghanistan and Central Asia to be transcribed in Persian for several centuries.

## Personal life

Hasan is known for his ascetic and austere religious lifestyle. At his modest living quarters in the Alamut Castle, he spent most of his time reading, writing, and administering. During his 45 years of residence in Alamut, he apparently left his quarters only twice to ascend the rooftop.
Hasan al-Sabbah probably had one wife, two daughters, and two sons. Hasan's wife and daughters were sent to Gerdkuh as a safe place during Shirgir's campaign against Alamut; they never returned. They lived on spinning. He had both his sons executed, Muhammad for khamr and Ustad Husayn for his suspected role in the murder of da'i Husayn Qa'ini.
Hassan was highly revered by the Nizari community, whose members called him Sayyidna ("Our Master") and regularly visited his mausoleum in Rudbar before it was demolished by the Mongols.

## In popular culture

* Betty Bouthoul published a popular book in French titled Le grand maître des assassins (Master of the Assassins) about Hasan-i Sabbāh in 1936.
* A 1938 novel named Alamut by Vladimir Bartol is based on Hasan's rise to power.
* The British space rock group Hawkwind recorded a song called "Hassan I Sahba" on its 1977 album, Quark, Strangeness and Charm.
* Hasan-i Sabbāh is mentioned, often by his moniker 'The Old Man of the Mountain', in many of William S. Burroughs's novels, including Nova Express, Cities of the Red Night, The Place of Dead Roads and The Western Lands. According to Barry Miles book The Beat Hotel Burroughs was introduced to Hasan through Betty Bouthoul's book while staying in Paris, France. The full story of Burroughs' interest in Hassan Sabbah was told in the 2023 book, Two Assassins, by Oliver Harris and Farid Ghadami.
* He is portrayed in the Turkish TV series Uyanış: Büyük Selçuklu by Gürkan Uygun.
* He is portrayed in the Egyptian TV series El-Hashashin by Karim Abdel Aziz.