Fitz-Walter George Probyn Butler, 17th Baron Dunboyne Irish peer (1874–1945) Parents Robert St. John FitzWalter Butler, 16th/26th Baron Dunboyne Caroline Maude Blanche Probyn Children Patrick Theobald Tower Butler, 18th/28th Baron Dunboyne Isolde Sheila Tower Butler Maureen Maude Tower Butler Doreen Synolda Tower Butler Siblings Robert Thomas Rowley Probyn Butler Blanche Amy Charlotte Butler Lesley James Probyn Butler Lavinia Alice Julia Butler Theobald Patrick Probyn Butler Maude Celestina Butler Rosalinda Laetitia Butler Partners Isolde Butler Tower