Hugh O'Neill, 3rd Baron Rathcavan: key obituary facts
Is Hugh O'Neill, 3rd Baron Rathcavan dead? Yes. Hugh O'Neill, 3rd Baron Rathcavan died on November 22, 2025, at age 3.
Cause of death: Hugh O'Neill, 3rd Baron Rathcavan's cause of death has not been publicly confirmed.
What was Hugh O'Neill, 3rd Baron Rathcavan known for?
Hugh O'Neill, 3rd Baron Rathcavan was a British hereditary peer and businessman.
British hereditary peer and businessman
Died on Saturday November 22nd 2025