Collegium Hosianum was a center of the Catholic Revival that began with what event in 1545?
Collegium Hosianum:  The Collegium Hosianum was one of the biggest Jesuit schools and one of the most important centres of Counter-Reformation in Europe and was particularly established to educate Catholic clergy of different countries. Counter-Reformation: The Counter-Reformation (Latin: "Contrareformatio" ), also called the Catholic Reformation (Latin: "Reformatio Catholica" ) or the Catholic Revival, was the period of Catholic resurgence initiated in response to the Protestant Reformation, beginning with the Council of Trent (1545–1563) and ending at the close of the Thirty Years' War (1648).
Council of Trent