Billed as a reformer and outsider, Pope Francis was elected five years ago.
He took the helm as the Catholic Church wrestled with corruption and the fallout of the child sexual abuse scandal. But this is hardly the first time that the church has been gripped by scandal.
Can you imagine a Pope placing the rotting corpse of his predecessor on trial? Or putting the papacy itself up for sale?
Well, history tells us that popes did all that and more at a time when they apparently played by a very different set of rules.
