Cador
Cador was the duke of Cornwall. According to Geoffrey of Monmouth, Cador was the son of Duke Gorlois of Cornwall and Igraine. In Welsh legend, he was called Cadwr, the Earl of Cornwall.
Though he was actually the half-brother of Arthur, Geoffrey says that he was Arthur's cousin.
Cador was one of the earliest followers of Arthur. Cador took part in the war against the Saxons, France and Rome.
According to Geoffrey, Wace and Layamon, Guinevere was Cador's ward when Arthur met and fell in love with her. They were soon married.
Cador took part in the war against the Romans, but was not mentioned in the war against Mordred. There was no mention of his death. After Arthur's death at the battle of Camlann, Cador's son (Constantine) became king of Logres (Britain).
By Jimmy Joe