Robert de Moravia, 6th Earl of Sutherland Scottish chief of Clan Sutherland (d. 1427) Parents William de Moravia, 5th Earl of Sutherland Joan Menteith Children Janet Sutherland Alexander Sutherland John de Moravia, 7th Earl of Sutherland Siblings Kenneth Sutherland John Sutherland, Master of Sutherland Joanna de Moravia, Lady of Bothwell Partners Margaret Stewart