1366 First of January on Thursday and the eleventh day of the
p.329moon, A.D. MCCCLXVI. Eighteenth year of the Lunar Cycle; fourth year of the Indiction; fourteenth year of the Solar Cycle. Common year. D.
Cathal son of Aed Brefnech son of Cathal Ruad and his son Magnus Oc were treacherously killed by Pilip Mag Uidir, king of Fermanagh, and the Archdeacon Mag Uidir in their own assembly, and afterwards very great depredations were made on the Clan Murtagh. The Muintir Ruairc and the Fir Managh [then] made peace.
After this Cathal Mag Flannchaid, chieftain of Dartry, was killed by the Clan Murtagh.
Cormac Donn Mag Carthaig, king of the Ui Cairpri and the Ui Echach Muman, was treacherously killed by Domnall na nDomnall the son of his own brother.
Conchobar O Conchobair, king of Ciarraige Luachra, was killed by the Branachs.
Seoan Mac Goisdelb, lord of Sliab Luga, died.
Ruaidri son of Muirchertach O Conchobair was drowned in the Shannon.
A great defeat was given by Tadc son of Magnus O Conchobair to Seoan O Domnaill and his gallowglasses. Mac Suibne and many others were taken prisoner and many were killed.
Mac Conmara, chieftain of the Clann Cuilein, died.
Master Florint Mac in Oclaich died this year.
Domnall O Neill assembled a force to make war on Niall O Neill. They expelled Mac Cathmail from his patrimony and caught up with the rear of the train. At this moment Ragnall son of Alexander, heir of the Clann Alaxandair, arrived from the Hebrides to join Niall O Neill, and each side had a band of their gallowglasses, the father on the one part and the son and brother on the other; Toirrdelbach was the brother and Alexander the son. Ragnall sent messengers to them, asking them both not to come against him, out of respect for his seniority. And they did not heed(?) him, but made a sudden attack on Ath an Imuricc against him, having seen that he was there. A fierce battle was then fought between them. Ragnall's son was slain and Alexander Mac Domnaill was taken prisoner, but Ragnall would not let his followers kill him, saying that he would not be charged with the deaths of his brother and his son. A large number of Domnall O Neill's men were killed then.
Great war between the Galls of Connacht, that is, between Macwilliam and Mac Muiris. Macwilliam Burke expelled the Clan Muiris and drove them into Clanrickard for the nonce.
Muirchertach son of Ragnall Mag Ragnaill was treacherously killed by Maelsechlainn Mag Ragnaill, chieftain of the Muinter Eolais. Maelsechlainn himself died two months afterwards.