*"Erin's Blood Royal – The Gaelic Noble Dynasties of Ireland", by Peter Berresford Ellis, Constable, London, 1999, (pages 251–258 on the O'Donel, Prince of Tirconnell).
* "Erin’s Blood Royal — The Gaelic Noble Dynasties of Ireland", by Peter Berresford Ellis, Constable, London, 1999, (pages 251—258 on the O’Donel, Prince of Tirconnell).