Kalends of January third feria, fourth of the moon. AD 1011 alias 1012.
An affliction of the colic in Ard Macha in the above year, and a great number died of it. Mael Brigte son of the Smith, lector of Ard Macha, died of it, and Scolaige son of Cléirchéne, priest of Ard Macha, and Cenn Faelad of the Saball, i.e. an excellent confessor, also died.
Flaithbertach son of Muirchertach, king of Ailech, led an army into Cenél Conaill and came as far as Mag Cétne, took a great spoil of cows and returned safe. Flaithbertach again led an army into Cenél Conaill as far as Druim Cliab and Trácht Eóthaile, and they slew the son of Gilla Pátraic son of Fergal, i.e. Niall, and inflicted a defeat on Mael Ruanaid ua Maíl Doraid; but no-one was lost there. Mael Sechnaill meanwhile in their absence led an army into Tír Eógain to Mag Da Gabul, and their raiding parties burned Tulach Óc and took spoil. Flaithbertach also led an army to Ard Ulad, plundered the Ard, and took the greatest spoils, both in captives and cattle, that a king ever took, though they are not counted.
Brian led an army into Mag Muirtheimne, and he gave complete immunity to Patrick's churches on that hosting.
A defeat i.e. the battle of Na Mullaig was inflicted on Niall son of Dub Tuinne, by Niall son of Eochaid, in which fell Muirchertach son of Artán, heir designate of Uí Echach, and Eochaid's son was afterwards made king.
Caenchomrac ua Scannláin, superior of Daiminis, and Lónán's son, superior of Ros Cré, died.
Aengus, superior of Sláine, was killed by the superior of Dubad.
Crínán son of Gormlaith, king of Conaille, was killed by Cú Chuailngi.