- 30 April
- 22 November as one of the Martyrs of England, Scotland, and Wales
- 29 October as one of the Martyrs of Douai
Studied in Lithuania, at the English College at Douai, France, and the College of Saint Alban, Valladolid, Spain. Priest. Returned to England to minister to covert Catholics, mainly in Northumberland. Arrested while celebrating Mass, and condemned to death for the crime of priesthood. Martyr.
- “Blessed William Southerne“. CatholicSaints.Info. 30 April 2012. Web. 7 July 2015. <>