Donald MacWilliam Claimant to the Scottish throne (1150–1187) Parents William MacWilliam, Lord of Egremont William fitz Duncan Unknown Children unknown daughter MacWilliam Gospatrick MacWilliam, Lord of Airton Domnall Ban MacWilliam Gofraid mac Domnaill Siblings Gospatrick MacWilliam, Lord of Airton Cecilia MacWilliam Alice de Rumilly, Lady of Allerdale Amabel MacWilliam, Lady of Copeland Donald FitzDuncan