1504 First of January, the age of the Lord one thousand five hundred and four years.
The battle of Knockdoe was fought this year. Gerald the Earl, Justiciar of Ireland, assembled the Galls and Gaels of Leinster and Leth Chuinn and invaded Clanrickard; and Macwilliam of Clanrickard and O Briain assembled another great army and came to meet them at Knockdoe. A battle was there fought between them, in which fell many nobles of the Gaels and of the Galls; indeed, so great a battle had not been fought among Gaels and Galls in latter times.
Magnus son of Brian Mac Donnchada, Abbot of the monastery of the Trinity in Loch Key, coffer and repository of the bounty and bravery of Ireland, the man who gave most presents to poets and minstrels since Tomaltach na Cairrce, died at Killadoon and was buried on Trinity Island, Loch Key; and this, the death of Mac Donnchada's son, is a beheading stroke to the artists of Ireland.
Conchobar son of Ruaidri Mac Diarmata, eligible prince of Moylurg, the strongest son of a king there had been in his country for a long time, was killed by the family of Conchobar Mac Diarmata at Belach na nUrbrointed.
Maelsechlainn son of Donnchad Mac Murchada [died] this year.