Stannis Baratheon kills his younger brother Renly Baratheon with a shadow assassin, though Renly intended to usurp the throne and kill Stannis. Euron Greyjoy admits to his brother Aeron Greyjoy that he slew their oldest full brother Balon Greyjoy, though not personally, and that he killed two of their half-brothers, Harlon Greyjoy and Robyn Greyjoy. Historically, during "The Blackfyre Rebellion", Brynden Rivers slew his half-brother, the King-claimant Daemon I Blackfyre, when he rose against their mutual half-brother Daeron II Targaryen.