Cain
- "Wherefore Cain was called Master Mahan, and he gloried in his wickedness."
- ―Glyph #6[src]

Cain was the first of Adam and Eve's two sons, and the older brother of Abel, whom he killed in order to obtain a Piece of Eden he possessed.
In the 21st century, Clay Kaczmarek referred to the Templar cross as the "Mark of Cain."
Biography
Cain was the firstborn of Adam and Eve, direct human descendants of the First Civilization. At one point in his life, Cain killed his younger brother, Abel, in order to steal the Apple of Eden in his possession, committing the first recorded homicide in human history. Cain's mark, which he was given for killing Abel, eventually became the symbol of the Templars, a cross under which they united to collect more Pieces of Eden.
Clay Kaczmarek, spoke of Cain in one of the Glyphs that he hid within the Animus data. He mentioned Cain's killing of Abel through quotes from the "Pearl of Great Price" scripture of the Church of Jesus Christ of Latter Day Saints.
Trivia
- The Morse code message in Cain's Glyph translated to "Templar texts adapted by Mr. Smith". This likely alludes to Joseph Smith, the 19th century preacher who founded the LDS Church.
Reference
- Assassin's Creed II - Glyphs #6: "Brothers"