Complex sentence: The establishment of modern seminaries resulted from Roman Catholic reforms of the Counter-Reformation after the Council of Trent which improved the education of clergy through the creation of seminaries as live-in institutions under the direct control of senior clergy.
Split into simpler sentences: The establishment of modern seminaries resulted from Roman Catholic reforms of the Counter-Reformation after the Council of Trent. Seminaries became live-in institutions under the direct control of senior clergy.