Barons Rathcavan First holder Robert William Hugh O' Neill, 1st baron Rathcavan * 1883 Records #2 Holders Family filter On/Off 1 Robert William Hugh O' Neill, 1st baron Rathcavan * 1883 2 Phelim Robert Hugh O' Neill, 2nd baron Rathcavan * 1909 Corrections and Updates To suggest a correction or an update. Click Here
