On the death of Sir Richard Wingfield, the King promoted Sir Thomas to the Chancellorship of the Duchy of Lancaster. At this time the see of Rome became vacant, and Wolsey aspired to the Papacy; but Charles V. disappointed him, and procured the election of Cardinal Adrian. In revenge, Wolsey contrived to persuade Henry that Catharine was not his lawful wife, and endeavoured to turn his affections towards one of the French King’s sisters. The case was referred to More, who was assisted by the most learned of the Privy Council; and he managed, difficult as it must have been to do so, to extricate both himself and his colleagues from the dilemma. His conduct as ambassador at Cambray, where a treaty of peace was negotiated between the Emperor, France, and England, so confirmed the favour of his master towards him, that on the fall of the Cardinal he was made Lord Chancellor. The great seal was delivered to him on the 25th of October, 1530. This favour was the more extraordinary, as he was the first layman on whom it was bestowed: but it may reasonably be suspected that the private motive was to engage him in the approval of the meditated divorce. This he probably suspected, and entered on the office with a full knowledge of the danger to which it exposed him. He performed the duties of his function for nearly three years with exemplary diligence, great ability, and uncorrupted integrity. His resignation took place on the 16th May, 1533. His motive was supposed to be a regard to his own safety, as he was sensible that a confirmation of the divorce would be officially required from him, and he was too conscientious to comply with the mandate of power, against his own moral and legal convictions. While Chancellor some of his injunctions were disapproved by the common law judges. He therefore invited them to dine with him in the council chamber, and proved to them by professional arguments that their complaints were unfounded. He then proposed that they should themselves mitigate the rigour of the law by their own conscientious discretion; in which case, he would grant no more injunctions. This they refused; and the consequence was, that he continued that practice in equity which has come down to the present day.