Kalends of January
. AD 825.
Diarmait son of Niall, king of southern Brega, dies.
Niall son of Diarmait, king of Mide, died.
Loingsech's son, abbot of Ard Macha, died peacefully.
Art son of Diarmait, king of Tethba, was deceitfully killed.
Bishop Clemens, abbot of Cluain Iraird, ended his life happily.
Great terror in all Ireland, i.e. from a warning of plague given by Iellán's son of Mumu.
Mael Dúin son of Gormgal, king of Uí Méith, died in clerical life.
The burning of Delbna Bethra by Feidlimid. He had a Munster army.
The mortal wounding of Artrí son of Muirgius, king of Tethba.
Daire's law was brought to Connacht again.
Ruithnél, superior and bishop of Cluain Ferta Brénainn, dies.