The Uí Méith Mara, meaning "Omeath by the sea", was seated in Cualigne in northern County Louth.
The following terms are noted in the Annals to describe or group the clans and septs that would descend from Rochad: The Clann Nadsluaig descend from Nadsluag, one of the sons of Cairpre Dam Argait, and part of the Síl Daim Argait.
The Fernmag, or Fer Fernmaighe, is an area around Lough Ooney, aka Lock Uaithne near Smithborough in the barony of Dartry, Co. Monaghan.
The region of Magh Lemna is given as being in the parishes of Clogher and Errigal Keerogue in southern Co. Tyrone bordering Co. Monaghan.
The territory of Airthir was centered in Ard Macha (Co. Armagh), along the eastern baronies of Orior.
Their territory lay in the baronies of Oneilland East and West in Co. Armagh, which both derive their name from the Uí Nialláin rather than the O'Neills.
The Airthir kings of the Uí Nialláin sept ruled from Loch gCál (modern-day Loughgall).
One of the principal chiefs of the Uí Tuírtri was the O'Lynns, who ruled from Lough Insholin, Desertmartin, County Londonderry – the name of which is preserved in the modern barony of Loughinsholin.
Muircertach mac Thomas Ó Floinn the heir aspirant was slain "treacherously" by Hugh, grandson of Aodh Buidhe Ó Néill (progenitor of the Clandeboye O'Neills), and when his father Thomas died the realm passed into the hands of the Clandeboye O'Neills.
Fir Luirg survives in the present-day name of the barony of Lurg, County Fermanagh.
The Uí Briúin descend from Brion, son of Eochaid Mugmedon and Mongfind, and was an elder half brother of Niall of the Nine Hostages.
The kingdom of Bréifne region remained part of the kingdom of Connacht until the time of Queen Elizabeth I when it was shired into the modern counties of Cavan and Leitrim, with Leitrim remaining within Connacht and Cavan becoming part of Ulster.
Below is a list of other Irish septs in Ulster that can't be attached to any specific Cenél or Clann.