Kalends of January sixth feria, second of the moon. AD 1115.
Extremely bad weather in the form of frost and snow from the fifth of the Kalends of January 28 Dec. to the fifteenth of the Kalends of March 15 Feb., or a little longer, and it inflicted slaughter on birds and beasts and men, and from this great want arose throughout all Ireland, and particularly in Laigin.
Diarmait ua Briain, king of Mumu, was taken prisoner by Muirchertach ua Briain.
An attack was made on the grandsons of Aed son of Ruaidrí including Tairdelbach ua Conchobuir, king of Connacht, i.e. at Áth Bó, and they were maimed, and he was dangerously wounded.
A defeat was inflicted by Domnall ua Briain and the foreigners of Áth Cliath on the Laigin, and in it fell Donnchad grandson of Mael na mBó king of Uí Cheinnselaigh, and Conchobor ua Conchobuir, king of Uí Fhailgi, with their sons and many others besides.
Domnall son of Tadc ua Briain, heir designate of Mumu, was killed by the Connachta.
Muirchertach ua Briain assumed his kingship again, and came with an army into Laigin and Brega.
The stone church of Ard Brecán, with many people, was burned by the men of Mumu, and many churches besides in the territory of the men of Brega.
A great raid was made by Tairdelbach ua Conchobuir and the Connachta, and they plundered as far as Luimnech, i.e. Tuadmumu, and brought away countless cattle and many captives.
Mael Sechlainn ua Mael Sechlainn, heir designate of Temair, was killed.