Kalends of January fourth feria, fifth of the moon. AD 642.
Death of Huaisle son of Suibne.
Repose of Crónán, bishop of Naendruim.
The battle of Cenn Con.
The burning of Iarnbadb son of Gartnaith.
Cellach and Conall Cael i.e. two sons of Mael Cobo son of Aed son of Ainmire, begin to reign, as some state.
Constantine son of Constantine reigned 28 years.
Here it is uncertain who reigned after Domnall. Some historigraphers state that four kings, i.e. Cellach, Conall Cael, and two sons of Aed Sláine son of Diarmait son of Fergus Cerrbél son of Conall of Cremthann son of Niall Naígiallach, namely Diarmait and Blathmac, reigned in mingled rule.