Annals of Inisfallen, Pre-Patrician Section (Author: Seán Mac Airt)
entry 125
Ireland was divided into twenty-five parts between the sons of Úgaine Mór, son of Eochu Buadach, for it was Úgaine Mór who first held Ireland after the chieftains of the Dagda, viz. Cobthach Cael Breg in Brega and Laegaire Lorc in Liphe.