Kalends of Jan. on 6th feria, 16th of the moon, A.D. 1423.
The castle of Ath-senaigh was built this year by Niall, son of Toirdelbach Ua Domnaill.
Toirdelbach, son of Niall Ua Domnaill the Rough, namely, king of Tir Conaill, died this year, in the habit of a monk, after
A great hosting was made by Ua Neill, namely, Domnall, and by Eogan Ua Neill and by Ua Domnaill, namely Niall, and by the Gaidhil of the rest of Ulster also against the Foreigners. And they went to Lughmadh that time and from that to Sradbhaile, and they made an attack on that expedition on the Foreigners of Meath and on the Foreigners of the Plain of Oirghialla and of Sradbhaile and on the deputy of the king of the Saxons. Great defeat was inflicted by them on the Foreigners that time, and they slew the knight who was the head of fighting for the Foreigners then and many more of the Foreigners along with him. And they got chattels numerous on that expedition, and made peace with the Foreigners likewise on that occasion, and left Sradbhaile and all the Foreigners under tribute and under covenants thenceforth, and so on.
Maurice, son of Matthew, son of Osgar Mag Uidhir, namely, archdeacon of Clochar (the great Archdeacon) and parson of Achad-urchaire and lord of Clain-inis and Ros-oirrther, died on the 6th of the Kalends of May April 26.
Mag Craith of the Termon of St. Dabheog, namely, Marcus, son of Maurice Mag Craith, died this year, and his brother, namely, John Mor Mag Craith, was made coarb in his stead.