Hassan ibne Sabbah (circa 1050–1124) was the leader of the Nizari Ismailites and the founder of the order known as Assassins.Assassins, who are often referred to as the Hashshashin, was a group of fedayeen.

Hassan ibne Sabbah was a missionary who converted the Nizari in the late 11th century in the heart of the Alborz Mountains of northern Persia. He later seized a mountain fortress called Alamut.
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unknown - http://www.rozanehmagazine.com/MayJune03/asabah2.jpg? ????? ???? https://commons.wikimedia.org/w/index.php?curid=3180706
http://en.wikipedia.org/wiki/User:Payampak - copied from http://en.wikipedia.org/wiki/Image:Alamut2.JPG? CC BY-SA 3.0? https://commons.wikimedia.org/w/index.php?curid=1787294