Ó thús a bunaithe ag Conall Gulban sa 5ú haois, fo-aonaid Ailigh ba ea an tuath, i dteannta le Cineál Eoghain, gaoil Chineál Chonaill trí Niall Naoighiallach, mar a mhaíodh. Thángadar i réim agus cumhacht na nUladh ag dul i léig, a laghdaigh a riocht in oirthuaisceart na cúige.
Ba í Críostaíocht Chaitliceach an reiligiún is suntasaí i ríocht Tír Chonaill.
Bhí bunaitheoir na clainne, Conall Gulban, an chéad rí tiontaithe ag Naomh Pádraig, mar a mhaítear. Meastar gurb ar cheann de thriúr naomhphatrúin na hÉireann é Naomh Colm Cille, a rugadh ag Conbháil.
William Lynch, A View of the Legal Institutions, Honorary Hereditary Offices, and Feudal Baronies established in Ireland, Longman, Rees, Orme, Brown and Green, Londain, 1830, lch 190.
Bernard Burke, Vicissitudes of Families, Longman, Green, Longman and Roberts, Londain, 1861, ll. 125–148
C. P. Meehan, The Fate and Fortunes of the Earls of Tyrone (Hugh O'Neill) and Tyrconnel (Rory O'Donel), their flight from Ireland and death in exile,ARÉ, 2a heagrán, James Duffy, Londain, 1870.
Peter Berresford Ellis, Erin's Blood Royal – The Gaelic Noble Dynasties of Ireland, Constable, Londain, 1999, ll. 251–258
Charles MosleyBlood Royal – From the time of Alexander the Great to Queen Elizabeth II, Ruvigny Ltd., Londain, 2002 ISBN0-9524229-9-9