1. William Tirry was captured by the priest hunters at Fethard, County Tipperary while continuing his priestly ministry covertly and was hanged at Clonmel, officially for high treason against the Commonwealth of England, but in reality as part of The Protectorate's systematic religious persecution of the Catholic Church in Ireland.
William Tirry was named after his uncle, the elder William Tirry, Bishop of Cork and Cloyne.
William Tirry then spent about four months working as secretary to his uncle, Bishop William Tirry.
William Tirry was accordingly forced into hiding like all other priests.
All sources are agreed that for three years prior to his capture, Friar William Tirry found shelter with his distant cousin, a local Old English noblewoman and elderly widow named Mrs Amy Everard, at Fethard, County Tipperary.
William Tirry was taken to Clonmel Gaol and held there pending trial.
William Tirry blessed the crowd which had gathered, pardoned his betrayers and affirmed his faith.
William Tirry publicly forgave the three men who had betrayed him, and.
William Tirry was then hanged, after which the crowd surged forward to soak pieces of cloth in the blood that ran from his nose, which were seen as relics of a martyr.
William Tirry's name drew little attention outside the Augustinian Order until the revival of interest in the Irish Catholic Martyrs following Catholic Emancipation in 1829.
William Tirry's Cause was submitted to Rome in 1904, and Pope Benedict XV authorized the introduction of his cause for Canonization in 1915.
Friar William Tirry was beatified by Pope John Paul II along with 16 other Irish Catholic Martyrs on 22 September 1992.