Complex sentence: But the official recognition and the crown's approval to his undertaking could not save him from the censure and ceaseless opposition of the divines, and in 1550, to escape the violence of his persecutors, he emigrated to Geneva where he set up his printing house.
Split into simpler sentences: But the official recognition and the crown's approval to his undertaking could not save him from the censure and ceaseless opposition of the divines. In 1550, to escape the violence of his persecutors, he emigrated to Geneva, where he set up his printing house.