Kalends of January third feria, twenty-sixth of the moon. AD 1090 i.e. the last year of the cycle and the thousand and ninetieth year since the birth of Christ.
Mael Dúin ua Rebacán, successor of Mo-Chutu, and Cian ua Buachalla, successor of Cainnech in Ciannacht, rested in Christ.
Mael Ruanaid ua Cairellán, chief of Clann Diarmata, Gilla Críst ua Luinig, chief of Cenél Maién, were treacherously killed on the same day by Domnall ua Lochlainn.
The stone church of the Fert was burned, with a hundred houses around it.
A meeting was held between Domnall grandson of Lochlann and Muirchertach ua Briain, king of Caisel, and the son of Flann ua Mael Sechlainn, king of Temair, and they all gave their hostages to the king of Ailech.
Taithlech ua hEgra was taken prisoner.