Barons Rathcavan First holder Robert William Hugh O' Neill, 1st baron Rathcavan * 1883 Records #4 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 3 Hugh O' Neill, 3rd baron Rathcavan * 1939 4 François O' Neill, 4th baron Rathcavan * 1984 Corrections and Updates To suggest a correction or an update. Click Here
