In the wake of the passing of Pope Francis, and prior to the election of Pope Leo, Barron’s looked at the seamier side of the Roman Catholic Church’s history (as full of sinners as any human populated institution might be) and mentions Gnostic Saint Roderic Borgia (of course!) Have a look:
https://www.barrons.com/news/orgies-murder-and-intrigue-the-demons-of-the-holy-see-81706e7d

Thanks to Soror Amy for the tip!