on december 13, 1545 , the ecumenical council of trent of the catholic church opened.taly in the city of tridente. trent, the entire episcopate gathered to repel protestantism and launch the counter-reformation. the council declared unshakable everything that protestants condemned: the church hierarchy with the primacy of the pope, the doctrine of original sin, the healing of priests, worship of saints and much more. the main weapon was the inquisition. heretics were tortured and burned at the stake, but catholicism only strengthened in southern europe, the czech republic and poland. and in other countries, protestant movements still dominated; the anglican church had already separated from rome. the final line under the counter-formation was drawn in 1648 by the westphalian peace treaty, which proclaimed religious tolerance, equalizing the rights of catholics and protestants. on december 13 , 1769, the austrian wolfgang camadeus mozart went on his first tour of italy. he was only 13 years old. italy was considered musical. the cradle of opera , the greatest composers