Kalends of January fourth feria, seventh of the moon. AD 1091.
Murchad grandson of Domnall Remar was treacherously killed by Énna son of Diarmait.
The western half of the Ráith of Ard Macha was burned.
Donn Sléibe ua Eochada, king of Ulaid, was killed in battle by Lochlann's grandson, king of Ailech, at Belach Goirt in Ibair.
The son of Aed son of Ruaidrí, king of the west of Connacht, died.
Mael Ísu, successor of Patrick, rested in repentance on the fifteenth of the Kalends of January 18 Dec.. Domnall grandson of Amalgaidh was immediately ordained in the abbacy in his stead.
This was a fruitful year with good weather.