Con O'Neill British diplomat (1912–1988) (1912–1988) Parents Sylvia Irene Sandeman Hugh O'Neill, 1st Baron Rathcavan Children Rowan Peter Hugh O'Neill Onora O'Neill Siblings Phelim O’Neill, 2nd Baron Rathcavan Nial Arthur Ramleh O'Neill Partners Carola Hertha Adolfine Emma Harriet Luise Baronin von Holzing-Berstett Rosemary Margaret Pritchard Anne-Marie Ljungström
