Who is Sir Lancelot?

Sir Lancelot, one of the twelve brave Knights of the Round Table, was for a while King Arthur’s right hand man. Things changed when Lancelot fell in love with Guinevere, who was inconveniently married to the King. Fighting and chaos ensued. The King got confused about who to believe and ended up dying in battle after being tricked by a really bad guy. Guinevere said the heck with all this and became a nun. Mortified Lancelot ditched the armor, put on a robe and lived as a monk for the rest of his life.