Alexander MacDonnell, 3rd Earl of Antrim Roman Catholic peer (1615–1699) Parents Randal MacDonnell, 1st Earl of Antrim Ellis MacDonnell, Countess of Antrim Children Randal MacDonnell, 4th Earl of Antrim Lady Mary Mac Donnell Siblings Randal MacDonnell, 1st Marquess of Antrim Lady Catherine MacDonnell Lady Anne MacDonnell Lady Mary MacDonnell Lady Alice MacDonnell Lady Rose MacDonnell Lady Sarah MacDonnell Partners Helena Burke Lady Elizabeth Annesley