Alexander MacDonnell, 5th Earl of Antrim (1713-1775) (1713–1775) Parents Randal MacDonnell, 4th Earl of Antrim Rachael Skeffington Children Lady Elizabeth Helena Mac Donnell Lady unknown Mac Donnell Randal William MacDonnell, 1st Marquess of Antrim Lady Rachel Mac Donnell Siblings Lady Helena Mac Donnell John Hawkins-Magill Partners Anne Plunkett Catharine Meredyth Elizabeth Pennefather