Julien Mayfair is Katherine's brother, and possibly the most powerful witch of his generation. He manages the Riverbend plantation and kills his cousin Augustin. He opposes Katherine's marriage and becomes her companion after her husband's death. He marries Suzette Mayfair and fathers Barclay, Garland, and Cortland. He also has male lovers, including Richard Llewellyn, who gives the Talamasca information about the Mayfairs. He apparently leaves the pact and an extensive autobiography in writing, which are destroyed by Mary Beth after his death.