In the 16th century, at the time of the Council of Trent and the Catholic Counter-Reformation, the church emphasized that the pope owed his election only to the Holy Spirit and thus became pope from the moment of election.
The pope owed his election only to the Holy Spirit. This was what the church emphasized in the 16th century. The church thus became pope from the moment of election. This was in the 16th century. This was at the time of the Council of Trent. This was at the time of the Council of the Catholic Counter-Reformation.