Retrieved April 16, 2013. ↑ Martyrologium Romanum (Libreria Editrice Vaticana, 2001 ISBN 978-88-209-7210-3) ↑ Calendarium Romanum (Libreria Editrice Vaticana, 1969), p. 131 1 2 3 Butler, Alban (2000). Peter Doyle, Paul Burns (ed.).