Kalends of January
. AD 831.
The first plundering of Ard Macha by the heathens three times in one month.
The plundering of Mucnám, Lugbad, Uí Méith, Druim Moccu Blae, and other churches.
The plundering of Dam Liac and the sept of the Cianacht with all their churches by the heathens.
Ailill son of Colgu was taken captive by the heathens.
Tuathal son of Feradach was taken away by the heathens, and Adamnán's shrine from Domnach Maigen.
Ráith Luraig and Connaire were plundered by the heathens.
Cinaed son of Echaid, king of Dál Araidi of the North, was deceitfully killed by his own associates.
Cinaed son of Artrí, king of Cualu, and Diarmait son of Ruaidrí, king of eastern Life, died.
Conchobor son of Donnchad, king of Ireland, died.