Tuesday, April 1st, St. Ceallach (Celsus) was born in 1080. He became abbot of Armagh in 1105 and was ordained priest. He was influenced by the reform then in progress in Munster. He presided at the Synod of Rathbreasail in 1111. In 1129, on a visitation of Munster, he died and is buried in Lismore in accordance with his own request.
Friday, April 4th, St. Isidore of Seville, became Bishop of Seville in the year 600 and died there in 636. His writings created a veritable encyclopaedia of knowledge. He completed the Mozarabic liturgy which is still celebrated today.
Saturday. April 5th, St. Vincent Ferrer, 1350-1419, Dominican priest, preached missions throughout his native Spain, France and Italy. He helped bring unity to the Church during the Great Schism between the Avignon and Roman claimants to the papacy.