Charles Edward MacDermot, The MacDermot, Prince of Coolavin (1862-1947) (1862–1947) Parents Mary Howley Hugh Hyacinth O'Rorke MacDermot Children Hugh Maurice MacDermot Basil Robert MacDermot Cyril MacDermot Dermot MacDermot Charles John MacDermot, The MacDermot, Prince of Coolavin Ruth Mary MacDermot Moira Madeleine MacDermot Siblings Hugh MacDermot Eva MacDermot Roderick MacDermot Augusta MacDermot Georgina Priscilla MacDermot Margaret Mary MacDermot Percy John Vincent MacDermot Frank MacDermot Henry Blake MacDermot Dermot MacDermot Eileen MacDermot Bernard MacDermot Partners Caroline Mary Whyte