Assassin's Creed III's Mohawk and English Assassin protagonist is named Ratonhnhaké:ton.
Ratonhnhaké:ton is the character's Kanien'kehá:ka name, and he is commonly known by the adopted name Connor Kenway. He is the son of the Templar Haytham Kenway and a Kanien'kehá:ka mother. The story follows his upbringing near Kanadaseg and his decision to join the Assassin Brotherhood during the American Revolution.
The name can be confusing because the game uses both names at different points. “Connor” is the English name given to him by Achilles Davenport, while Ratonhnhaké:ton is his birth name and the name associated with his Kanien'kehá:ka identity. The question asks for the historical name rather than the familiar English one.
Assassin's Creed III moves between the 1750s and the 1780s, covering events connected with the American Revolutionary War. Connor encounters figures such as George Washington, Benjamin Franklin, and Charles Lee, but those historical figures are not the playable protagonist. His story is distinct from that of his father, Haytham, who is playable in the game's opening sequence.