Order of Assassins

Nizari Isma'ili military order (1090–1256)

The Order of Assassins (Arabic: حَشّاشُون, romanized: Ḥaššāšūn; Persian: حشاشين, romanized: Haššāšīn) was a Nizari Isma'ili Shia Islamic military order founded by Hasan-i Sabbah in 1090. Based in the Nizari Isma'ili state, which comprised a network of mountain castles in Persia and Syria, they conducted several high-profile assassinations throughout the Levant during the Crusades. The Assassins held a strict subterfuge policy in the region and are believed to have killed hundreds of people who were deemed enemies of their state over the course of 200 years, including other Shias (the Fatimids), as well as Sunnis (the Abbasids and Seljuks) and Christians (the Crusaders) alike.

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