Kalends of January fourth feria, eighth alias 8th of the moon. AD 664.
The great mortality. Diarmait son of Aed Sláine and Blamac and Mael Bresail, sons of Mael Dúin, died i.e. of the buide Chonaill.
Ultán son of Caunga, abbot of Cluain Iraird, died.
The falling asleepfrom the same pestilence i.e. the buide Chonaillof Féichéne of Fobar, and Ailerán the learned, and Crónán son of Silne.
Cú cen Máthair son of Cathal son of Aed son of Cairpre son of Crimthann, king of Mumu, dies.
Blamac of Tethba, Aengus of Ulaid, Manchán of Liath, bishops and abbots, and innumerable others, died.
Colmán Cas, abbot of Cluain Moccu Nóis, Cuiméne abbot of Cluain Moccu Nóis, fell asleep.