House of O'NeillKings of Ailech and Tír EoghainConn O'Neill, last king of Tír Eoghain submitted to Henry VIII of England in 1541 and was in turn created 1st Earl of Tyrone
House of O'DonnellKings, Princes and Lords of Tyrconnell
House O'Neill of ClanaboyLords of ClandeboyeBarons and Viscounts of O'NeillIssued from Aodh Buidhe mac Domhnaill Óg, King of Ailech
House of MacShane O'NeillPrinces of Ulster and TyroneThe O'Neill MórIssued from Shane, younger legitimate son of 1st Earl of Tyrone
House O'Neill of TyroneBarons DungannonEarls of TyroneIssued from Matthew, illegitimate son of 1st Earl of Tyrone
Matthew O'NeillBaron DungannonIllegitimate son of 1st Earl of TyroneProgenitor of the Tyrone branch