Kalends of January, eighteenth of the moon,
[...]
. AD 939 alias 940.
Donnchad and Muirchertach led an army to the Laigin and to Mumu, and both took their hostages.
Suibne son of Cú Bretan was killed by the foreigners.
Niall son of Fergal was wounded and drowned, that is, by Muirchertach son of Niall.
Flann daughter of Donnchad, queen of Ailech, dies.
Donnchad made a foray into Brega and plundered Lann Léire.
Repose of Muiredach, successor of Comgall.