First Hassan

 The Servant's True Name is usually considered to be "the Old Man of the Mountain". He is also known by the name of First Hassan. He was the first person to hold the title of Hassani-Sabbah and was the first to be recognized as the founder of "Old Man". The nickname he has is King Hassan (kinguhasan or Kingu Hasan?). Ritsuka Fujimaru to whom he is fondly attached. However, his real identity was not known to the 18 individuals who were to be the heirs to his titles. There is no proof to suggest that he ever existed. One thing that is proven is the fact that he was executed for departing from the way of Hassani-iSabbah. Every person who came across him ended up dead. The "Old Man of the Mountain", the one who gave the sect its name decided to remain an observer and make a decision on discord and deviances. Although the sect remained true to the doctrines of Allah but it was clear that those who pledged to maintain it were guilty in the eyes of Man. Therefore, for those who defended the doctrine to lose themselves to the desires of man was for be to the Old Man of the Mountain to the point of being an act of blasphemy against Allah.Namely the corrupting of the leader of the sect and the current Old Man of the Mountain could lead to the demise of the sect. If that leader had a corrupt spirit or declining skills, such a person should not carry the title of the Old Man of the Mountain. To fall meant that you would die. As a sign of repentance for their sins, he removed their heads and gave an opportunity to the next Man on the Mountain. He decided to fight front-to-front with a greatsword, instead of hidden weapons in honor of his solemn obligation to kill assassins. The life of a person was over when one saw the skull-masked face of his. After bringing the hammer down on those who deviated from the rules of the order The skull-masked swordsman was able to remove anyone who saw him disappear from the earth.