Kalends of January
. AD 803.
Domnall son of Aed Muinderg, king of the North, dies.
Fiachra son of Tuathal, king of Uí Téig, dies.
Repose of Caratbran, abbot of Biror.
Cormac son of Conall, steward of Lusca, dies.
Devastation of Laigin twice in one month by the son of Niall.
Faelán son of Cellach, superior of Cell Dara, and Cernach son of Dúnchad, king of Mugdorna, died.
A meeting of the synods of the Uí Néill in Dún Cuair, presided over by Connmach, abbot of Ard Macha.
(This year, moreover, the clerics of Ireland were freed by Aed Oirdnide, at the behest of Fothad of the Canon, from the obligation of attendance on expeditions and hostings.)
A battle between the Uí Chremthainn themselves, in which Echu son of Cathal and Domnall son of Echaid and Dub Rois and many others fell; and Donn Clochair, son of Artrí, was victor.
A hosting by Aed oirdnide to Laigin, and Fínnechta, king of Laigin, submitted to him.
Violent thunder, accompanied by wind and fire, on the night before St. Patrick's Day, which destroyed many persons, i.e. one thousand and ten in Corcu Baiscinn; and the sea divided the island of Fita into three parts, and covered the land of Fita with sand, that is as much land as would support 12 cows.
Cenannas was given without battle to the melodious Colum Cille this year.