Complex sentence: There were setbacks in the attempts to restrain the anti-Church policies of European powers of the time, the most notable setback perhaps being in 1773 when Pope Clement XIV was forced by secular powers to have the Jesuit order suppressed.
Split into simpler sentences: There were setbacks in the attempts to restrain the anti-Church policies of European powers of the time. The most notable setback perhaps being in 1773 when Pope Clement XIV was forced by secular powers to have the Jesuit order suppressed.