From north-west to south-east, there were two kingdoms named for Coirpre mac Néill in early historical times. These were Cenél Coirpi Dromma Clíab, north Sligo on Donegal Bay, and Cenél Coirpri Mór, the northern half of Tethbae around Granard in modern County Longford. This alignment of territories may suggest that the kingdom of Coirpre and its satellites once extended over 100 miles across Ireland. A third Cenél Coirpri, the region around Carbury and the headwaters of the River Boyne in the north-west of County Kildare, is of much later origins.