Kalends of Jan. on 7th feria, 2nd of the moon, A.D. 1457.
Brian, son of Philip Mag Uidhir of the battle- axe, namely, son of the king of Fir-Manach, died after victory of Unction and good penance.
Great war arose this year between Mag Uidhir (namely, Thomas) and the sons of Rughraidhe Mag Mathgamna. Mag Uidhir mustered his territory to him and when the sons of Mag Mathgamna learned that, they proceeded to their fastnesses, that is, on the Eoganach and towards Sliabh-
Tadhg Ua Ruairc. And the son of Maghnus the Gloomy, son of Cathal Mag Uidhir the Deaf and many others that are not reckoned here were slain by them on that expedition. Philip went to his house from that expedition with victory of overthrow.
to Gort-an-fedain. There a battalion of kern and a battalion of gallowglasses of the people of Ua Ruairc overtook him. Then Mag Uidhir and Brian Mag Uidhir, with the six that were on horses and the three score kern, turned on them and routed the people of Ua Ruairc spiritedly, felicitously on that occasion and inflicted the defeat of Ath-Conaill and of the Graine-namely, a river that is between Fir-Manach and the Breifne-upon them. Mag Uidhir and his people then, returned with spoils joyfully. And the kern of Mag Uidhir carried with them sixteen heads of the nobles of the people of Ua Ruairc to the town of Mag Uidhir and they were placed on the palisade of the court-yard of Mag Uidhir and so on.
Glaisne, son of Concobar Mag Uidhir junior, died this year.
Toirdelbach, son of Domnall Ua Gallcubair, namely, son of Ua Gallcubair, was slain in the company of the sons of Philip Mag Uidhir on the mountains of Cenel-Luachain, by Mac-an-taisigh.
Lasairfina, daughter of Thomas Mor, Mac Briain Mac Maghnusa, wife of Domnall Ua Ceothain, died on the 14th of the Kalends of June May 19.