He was also chancellor of the diocese of London, in which capacity he examined Protestants who were brought before Bishop Bonner about matters of faith.
He brought back an answer to the effect that attendance at the heretical worship would be a great sin.
It was at his prompting that the fathers of the Council passed the decree De non adeundis Haereticorum ecclesiis.
He visited several parts of France and Flanders, and entered the Society of Jesus on 1 May 1563, at St. Andrew's Novitiate, Rome.
Then the pope gave him a mission to Scotland, along with Father Edmund Hay, to the apostolic nuncio Vincentius Laurens who had been consecrated bishop, and appointed his successor in the see of Monte Regale.