Cellach was born in Armagh and at the age of twenty-seven, was consecrated archbishop of that diocese. In 1121 he became Bishop of Dublin. He was active in the Church, both intellectually and practically, repairing Armagh Cathedral in 1125. He acted in a conciliatory role on many occasions, the most notable being the truce between the King of Connaught and the King of Munster in 1128. His pupil, St Malachy, he recommended to succeed him. He died in Ardpatrick, County Limerick, and was remembered for his outstanding contribution to the organisation of the Church. His feast day is on the 6th of April.

Born:	c.1079
Died:	1129