Randal MacDonnell, 1st Earl of Antrim Irish peer (died 1636) (d. 1636) Parents Mary O'Neill Sorley Boy MacDonnell Children Lady Alice MacDonnell Lady Rose MacDonnell Lady Catherine MacDonnell Alexander MacDonnell, 3rd Earl of Antrim Lady Anne MacDonnell Randal MacDonnell, 1st Marquess of Antrim Lady Mary MacDonnell Lady Sarah MacDonnell Siblings Sir James Mac Sorley Mac Donnell Alexander Mac Donnell Engas Mac Donnell Ann Mac Donnell unknown daughter Mac Donnell Partners Ellis MacDonnell, Countess of Antrim