wrote was 'the restoration of the pure Christianity of Jesus' which meant for him the search for the truth in the whole freedom of thought. So he sought to persuade the prince, John II Sigismund Zápolya and several people in important positions to reach an agreement between the opposite sides of the religious debate. His attempts were successful. Between 6 and 13 January 1568 on the Diet of Torda the assembled representatives of the Hungarian nobility, the Szeklers, the Transylvanian Saxons and the royal court of the Principality of Transylvania proclaimed the Edict of Torda which included - as first in Europe - the practising and propagation of the recepta religios (allowed religions) which were the Roman Catholic, the Lutheran, the Calvinist and the Unitarian. This order can be seen as the first law for the 'freedom of religion'. Thanks to that beside the three lawful nations of Transylvania the four lawful allowed religions could have an ecclesiastical, political and public law system in the Constitution of the Principality of Transylvania. From that moment on the constitution based on the equal rights of the three nations and the four religions. Prison and death In 1571, John II Sigismund Zápolya was succeeded by István Báthory, a Roman Catholic, and the policy shifted toward persecution of the new religious institutions. In the same year the new ruler took the press of Gyulafehérvár back from the Unitarians. On the Diet of 1572 in Marosvásárhely (today Târgu Mureș, Romania) the religious laws were strengthened, but it declared the prohibition of the changing of religion. When, under the influence of Johannes Sommer, rector of the Gymnasium of Kolozsvár, Dávid denied the necessity of invoking Jesus Christ in prayer (about 1572), the attempted mediation of Faustus Socinus, upon Blandrata's request, was unsuccessful. Ferenc Dávid was sentenced to life imprisonment in Déva, Principality of Transylvania (today Deva, Romania), and died there in 1579. The ruins of the prison site in the city now hold a memorial for him. Lukas Trauzner After the death of Ferenc David, Lukas Trauzner, his son-in-law, wrote together with Miklós Bogáti Fazekas, Bernard Jacobinus (father of János Jacobinus) and the sons of Ferenc Dávid the Defensio Francisci Davidis in negotio de non invocando Jesu Christo in precibus (Basel, 1581) and were part of the inner opposition of the moderate Unitarianism movement of Demeter Hunyadi. Lukas Trauzner was sentenced to jail in 1579 because