Lancel Lannister

From A Wiki of Ice and Fire

Lancel Lannister is the oldest son of Ser Kevan Lannister. A young blond-haired man, he is said to closely resemble his cousin, Jaime Lannister. He served as a squire to King Robert Baratheon, and upon Robert's death, was formally knighted.

Critically injured during the Battle of the Blackwater, Lancel recovered with the help of the High Septon and developed a new devotion to the Faith of the Seven. He was later married to one of Lord Walder Frey's grandchildren and given the lordship of the Darry lands, but he has no interest in his wife or the riches of his new land, desiring instead to swear service as part of the newly reformed Faith Militant.