Papa Gregorio VII : © Scala / White Images / Art Resource , NY ; papa Innocenzo III : © Scala / Art Resource , NY ; Concilio di Trento : © Scala / White Images / Art Resource , NY ; papa Paolo IV : © The Print Collector , Great Britain / HIP / Art Resource , NY
Papa Gregorio VII : © Scala / White Images / Art Resource , NY ; papa Inocencio III : © Scala / Art Resource , NY ; Concilio de Trento : © Scala / White Images / Art Resource , NY ; papa Pablo IV : © The Print Collector , Great Britain / HIP / Art Resource , NY