Complex sentence: Many episcopi vagantes claim succession from the Old Catholic See of Utrecht, or from Eastern Orthodox, Oriental Orthodox, or Eastern-Rite Catholic churches; others from Roman Catholic bishops that have consecrated their own bishops after disputes with the Vatican.
Split into simpler sentences: Many Episcopi Vagantes claim succession from the Old Catholic See of Utrecht, from Eastern Orthodox, Oriental Orthodox, or Eastern-Rite Catholic churches. Also a significant minority of other Episcopi Vagantes derive their Orders from Roman Catholic bishops that have consecrated their own bishops after disputes with the Vatican.