Character in The Repairer of Reputations. Daughter of the Armorer Hawberk. Hildred Castaigne and Mr. Wilde worry that if she marries Louis Castaigne, she will bring him British support against them, thanks to their suspicions about her father's true identity. A Constance Castaigne appears in The River of Night's Dreaming, the daughter of a Mrs Castaigne.