In Assassin's Creed III, Ratonhnhaké:ton uses the name Connor in the American colonies.
He is the son of Haytham Kenway and a Kanien'kehá:ka woman named Kaniehtí:io. To move through colonial society more easily, he adopts the name Connor, while Ratonhnhaké:ton remains his Kanien'kehá:ka name. The character's dual naming reflects his mixed heritage and the game's focus on identity during the American Revolution.
Connor is trained by Achilles Davenport and becomes an Assassin. His missions take him through Boston, New York, and frontier environments while historical figures and revolutionary events shape the story.
Haytham is Connor's father and a Templar, not his alternate name. Achilles is Connor's mentor, and Desmond Miles is the modern-day character who experiences Connor's memories through the Animus.