The original Catholic canon law that defined governance within the Church clearly needed revision following Henry's break with Rome. Several revision attempts were made throughout Henry's reign, but these initial projects were shelved as the speed of reform outpaced the time required to work on a revision. As the reformation stabilised, Cranmer formed a committee in December 1551 to restart the work. He recruited Peter Martyr to the committee and he also asked Łaski and Hooper to participate, demonstrating his usual ability to forgive past actions. Cranmer and Martyr realised that a successful enactment of a reformed ecclesiastical law-code in England would have international significance. Cranmer planned to draw together all the reformed churches of Europe under England's leadership to counter the Council of Trent, the Catholic Church's response to the Protestant Reformation. In March 1552, Cranmer invited the foremost Continental reformers, Bullinger, John Calvin, and Melanchthon to come to England and to participate in an ecumenical council. The response was disappointing: Melanchthon did not respond, Bullinger stated that neither of them could leave Germany as it was riven by war between the Emperor and the Lutheran princes, and while Calvin showed some enthusiasm, he said he was unable to come. Cranmer acknowledged Calvin and replied stating, "Meanwhile we will reform the English Church to the utmost of our ability and give our labour that both its doctrines and laws will be improved after the model of holy scripture." One partial manuscript of the project survived that was annotated with corrections and comments by Cranmer and Martyr. When the final version was presented to Parliament, the breach between Cranmer and Dudley was complete and the regent effectively killed the canon law bill in the House of Lords.