Complex sentence: Many former camisards came back to a more peaceful approach and from 1715 onwards helped reestablish a still illegal but now much better organised Protestantism under the leadership of Antoine Court and of the numerous travelling pastors who could then reenter the country.
Split into simpler sentences: Many former camisards came back to a more peaceful approach and from 1715 onwards helped re-establish a still illegal but now much better organised Protestantism. They were under the leadership of Antoine Court and of the numerous travelling pastors who were permitted to re-enter the country.