The eldest child of Marianne vi Britannia and Charles zi Britannia. Born Lelouch vi Britannia, the eleventh prince of the Holy Britannian Empire and 17th in succor of the throne, on December 5th, 1999 a.t.b.
He would play chess with his half brother's Schneizel el Britannia the second prince, and soon to be prime minister of Britannia, and Clovis la Britannia the third prince, and soon to be Viceroy of Area 11. He loved his sister Nunnally very much and always tries to protect her. But he also cared for his half-sisters Cornelia li Britannia, the second princess, soon to be Commander-in-chief of the Imperial Army, and Viceroy of Area 11 after Clovis's death, and Euphemia li Britannia, the third
princess and soon to be Sub-viceroy of area 11.
In 2009 a.t.b. Marianne vi Britannia was assassinated. Nunnally became paralyzed in the limbs and became blind from trauma. After that both Lelouch and Nunnally became political hostage, for Area 11, but the emperor still attacked Area 11, on August 10, 2010. As political hostages they became close friends with Kururugi Suzaku. After the attack and the death of Kururugi Genbu, both Nunnally and Lelouch went into hiding. Their last name was changed to Lamperouge.
In 2017 Lelouch is in the high school class at Ashford academy, he is the vice president of the student council. He is known of cutting classes to gamble, on chess. Nunnally is in the middle school group, and is an honorary member of the student council. They are able to dorm in the school thanks to Milly Ashford, who is the only person who knows of their identity. After one of his many chess games, he and Rivalz saw a truck crash into a bridge. He went to go see if the drivers needed help
and wound up falling into the truck. The truck went into the Shinjuku ghetto's where it wound up getting trapped. Lelouch was almost killed by the military officer that found him, but Suzaku, who is a private in the military, saved him and got shot instead. As the poisonous container opened, only it was poison it was a girl inside.
Lelouch took the girl and ran off. The military officers killed all the elevens in the place he was hiding only to be found by Shirley calling, having his phone go off. There the commanding officer shot a bullet at his head but only to be saved by the girl, C.C. who took the shot in the head,
who then made a contract with Lelouch, giving him the power of Geass.
He gained the power of absolute order. His geass allows him to give an order to any person, but it only works once. After that he helped the Elevens, win there fight against Britannia in that battle, and also killed his half-brother Clovis. He also caused a cease fire order. He became Zero, for Nunnally, to make the world a better place for when she could see again.