Connor is the commonly used English name of Assassin's Creed III's protagonist.
His Mohawk name is Ratonhnhaké:ton, and the game follows him during the American Revolution. Connor is the son of Haytham Kenway and becomes an Assassin after his village is threatened. His story takes him through locations including Boston, New York, and the American frontier.
Assassin's Creed III was released in 2012. Connor's historical storyline spans the period surrounding the Revolution, while the modern-day plot continues Desmond Miles's story. The game also introduced major wilderness environments and expanded naval sequences.
The name can cause confusion because Ratonhnhaké:ton is the character's birth name, whereas Connor is the English name he uses in the game. Haytham is Connor's father and a separate playable character during the opening portion, so it is not the answer to this question.