Kalends of January
. AD 855.
There was much ice and frost so that the principal lakes and rivers of Ireland could be crossed by people on foot and on horse back from the ninth of the Kalends of December 23 Nov. to the seventh of the Ides 7 of January.
Mael Sechnaill, son of Mael Ruanaid, was in Caisel and he took hostages from Mumu.
Great warfare between the heathens and Mael Sechnaill, supported by Norse-Irish.
The oratory of Lusca was burned by the Norsemen.
Aed son of Niall inflicted a great rout on the Norse-Irish in Glenn Foichle and a vast number of them were slaughtered by him.
Horm, chief of the dark foreigners, was killed by Rhodri son of Mervyn, king of Wales.
Suibne grandson of Roichlech, scribe, anchorite and abbot of Les Mór, and Cormac of Lathrach Briúin, a scribe and bishop, fell asleep in peace.
Sodomna, bishop of Sláine, suffers a violent death.