In 1581 Dermot O'Hurley was appointed to the Archbishopric of Cashel. He had been a distinguished student of Louvain, and was then a professor of Canon Law at Rheims. Hardly had he reached Ireland when the government spies were on his track. For some time he remained in the vicinity of Drogheda, and then he withdrew to the castle of the Baron of Slane, from which he proceeded through Cavan and Longford to his diocese. Having learned, however, that the Baron of Slane was in danger for having afforded him assistance he surrendered himself to his persecutors. He was brought to Dublin, in the course of which he admitted that he was an archbishop appointed by the Pope, but he denied that he had come to Ireland to stir up strife or to encourage treasonable conspiracies. On one occasion at least he was subjected to horrible torture to extract from him some damaging admissions. At the advice of Walsingham his feet and legs were encased in tin boots and he was held over a fire. As he still refused to submit he was tried by court-martial and condemned. In June 1584 he was hanged in Dublin.[80] Edmund McGauran, who was translated from Ardagh to Armagh in 1587, devoted himself earnestly to the task of inducing the Catholic princes of Ulster to defend their religion and their territories. He was slain during a battle between Maguire of Fermanagh and the English in 1593.[81] Redmond O'Gallagher, Bishop of Derry, was specially active throughout the whole province of Ulster, and so powerful were his protectors that for years the government agents were afraid to arrest him, but in the end he was slain together with three of his priests by soldiers from the Lough Foyle garrison (1601).[82]