May

1. Joseph the Worker
2. Athanasius, bishop and doctor
3. Philip and James, Apostles

12. Nereus and Achilleus, martyrs; also Pancras, martyr

14. Matthias, Apostle
15. Isadore, farmer and husband of Saint Maria de la Cabeza

18, John I, pope and martyr

20. Bernardine of Siena, priest

25. Venerable Bede, priest and doctor; Gregory VII, pope, also Mary Magdalene de Pazzi, virgin
26. Philip Neri, priest
27. Augustine of Canterbury, bishop

31. Visitation