Lelouch vi Britannia is the son of the Emperor of Britannia, Charles zi Britannia, and the late Imperial Consort Marianne, making Lelouch the Eleventh Prince of the Holy Britannian Empire. He was seventeenth in line to the Imperial throne prior to his mother's assassination, an event which also left his sister blind and crippled. His father banished him and his sister Nunnally to Japan, where they were used as political tools. It was during his stay at the Kururugi household that he first met Suzaku Kururugi, who would later become his best friend.