Phelim O’Neill, 2nd Baron Rathcavan British politician (1909-1994) (1909–1994) Parents Sylvia Irene Sandeman Hugh O'Neill, 1st Baron Rathcavan Children Kathleen O'Neill Grania Elizabeth O'Neill Moira Louisa O'Neill Rosetta Anne O'Neill Mary Rose O'Neill Hugh Detmar Torrens O'Neill, 3rd Baron Rathcavan Siblings Nial Arthur Ramleh O'Neill Con O'Neill Partners Clare Désirée Blow Bridget Doreen Coke