He probably had many hundreds, if we go by the amount of St. John's bodyparts all over Europe during the middle ages. I understand there were enough bones attributed to him, to create at least six full skeletons
Going by the same distribution ratio, encompassing the width and breadth of the Imperium, I'd say there may actually be thousands! And each and every one of them profitable enough to, together, make up a substantial portion of Echlesiary funding too