On this day in history, Thursday 12th September 1555, in the reign of the Catholic Queen Mary I, the trial of Thomas Cranmer, Archbishop of Canterbury, opened in the University Church of St Mary the Virgin at Oxford. Cranmer stood accused of heresy, being charged with two main offences, or doctrinal errors: repudiating papal authority and denying transubstantiation.

Martyrologist John Foxe gives an account of Thomas Cranmer’s trial in his “Book of Martyrs”: