The big thing about AC3 is that the historical Charles Lee is divided into two characters in the game. This is something known in tvtropes as Decomposite Character. There are two Charles Lees in this game. One is the game's Charles Lee, an insulting, cantankerous, frowning soldier, and Haytham who gets the historical Lee's rumored relations with a Mohawk chieftain's daughter.
say that this is a historical innacuracy