19th April, (6th April O.S.):
- BERTHANC (BERCHAN), a monk at Iona in Scotland and later Bishop of Kirkwall in the Orkneys. He is thought to have reposed in Ireland and been buried at Inishmore in Galway Bay circa 840.
- BRYCHAN, (Date unknown.), a Welsh King and father of twenty-four saintly children.
- CELESTINE, (on Eastern Calendars 8th April.), a native of the Campagna in Italy, who succeeded Boniface I (4th September) as Pope of Rome in 422. He supported St. Germanus of Auxerre (18th August) against Pelagianism, condemned Nestorianism, and reposed in 432.
- ELSTAN, a monk at Abingdon in England with St. Ethelwold (1st August), where he was celebrated as a model of obedience. He went on to serve as Bishop of Ramsbury, and later succeeded St. Ethelwold as Abbot of Abingdon, reposing in 981.
- FLORENTIUS, GEMINIANUS AND SATURUS, martyrs in Sirmium in Pannonia, most likely in the fourth century.
- GENNARD, a monk at Fontenelle, who went on to serve as Abbot of Flay. He reposed in 720.
- MARCELLINUS, the imperial representative in North Africa at the time of the Donatist heresy. He and his brother, the judge Agrarius, tried to enforce the decisions of a conference in Carthage against Donatism, but the Donatists resorted to false accusation and the two brothers were martyred in 413.
- NOTKER BALBULUS, nicknamed Balbulus, i.e. the Stammerer. He was born near Zurich, and when still a child entered the monastery of St. Gall where he spent his whole life, excelling as a musician. He reposed in 912.
- PRUDENTIUS GALINDO, a Spaniard by birth, who fled from the Saracens to France while still a youth. Once there he changed his baptismal name Galindo to Prudentius. Chosen Bishop of Troyes circa 840 - 845; he reposed in 861.
- RUFINA, MODERATA, ROMANA, SECUNDUS AND SEVEN COMPANIONS, martyrs in Sirmium in Pannonia, most likely in the fourth century.
- ULCHED (ULCHAD, YLCHED), (Date unknown.), a Welsh holy man who gave his name to Llechulched in Anglesey.
- URBAN, an abbot of the Monastery of Peñalba near Astorga who reposed circa 940.
- WINEBALD (VINEBAUD), a monk at Saint-Loup-de-Troyes, and later abbot there. He reposed circa 650.
* - Prior to the Schism the Patriarchate of Rome was Orthodox and fully in communion with the Orthodox Church. As Saint John of Shanghai and San Francisco +1966 said "The West was Orthodox for a thousand years, and her venerable Liturgy is far older than any of her heresies."