Robert Thomas Rowley Probyn Butler (1882-1938) (1882–1938) Parents Caroline Maude Blanche Probyn Robert St. John FitzWalter Butler, 16th/26th Baron Dunboyne Children Siblings Maude Celestina Butler Rosalinda Laetitia Butler Theobald Patrick Probyn Butler Fitz-Walter George Probyn Butler, 17th Baron Dunboyne Lavinia Alice Julia Butler Lesley James Probyn Butler Blanche Amy Charlotte Butler