Kalends of January first feria, eighteenth of the moon. AD 1111.
Very bad weather in the form of frost and snow, and it inflicted slaughter on domestic and wild beasts.
Cathasach ua Ledai of the community of Patrick, a noble elder of Ireland, rested in peace.
Lugmadh was burned.
Port Láirge was burned.
Cenannas was burned.
An expedition was made by the Ulaid to Telach Óc, and they cut down its sacred trees. A raid was made by Niall ua Lochlainn, and carried off a thousand or three thousand cows in revenge for them.
Lightning burned Dún dá Lethglas, both ráith and trian.
A synod was held in Fiadh Mic Aenghusa by the nobles of Ireland, including Cellach, successor of Patrick, and Mael Muire ua Dúnán, noble elder of Ireland, with fifty bishops or a little more, three hundred priests and three thousand clerics, and also with Muirchertach ua Briain, with the nobles of Leth Moga, to enjoin uprightness and good conduct on everyone, both laity and church.
Donnchad ua Anluain, king of Uí Nialláin, was treacherously killed by his kinsmen, and those kinsmen themselves were killed within twenty nights by the Uí Nialláin to avenge him.
A meeting was held between Domnall ua Lochlainn and Donnchad ua Eochada at the Cuan, and they made full peace and the Ulaid gave Domnall ua Lochlainn hostages for his own tribute.