But was this an expample of a pope being evil? Did he have the right to persecute the Waldenses?
We have to be careful not to inject our contemporary taken-for-granted assumptions about the structuring of secular and religious authority back into medieval times.
Just because someone is a Pope or a bishop or a priest … doesn’t automatically mean his authority is purely spiritual, ethical and exhortative and without civil teeth (as it is today in most Western countries).
In fact, quite the reverse seems to have happened in the high middle ages - Popes, bishops, priests … these were effectively titles to de facto purely secular authority. Think of these men as simply Kings, Judges, Lords, Magistrates all working under a relatively single system of law (which only the Catholic Church provided in those times). Just because it was **dressed **as religion doesn’t mean it is true religion. Thus the secular power has the right to impose capital punishment.
Obviously the mixture of secular and religious authority of that period runs a little deeper than being merely “dressed” in religion - but not a bad starting point to make sense of a time very different from our own.
And how did that mixing of religion and civil authority (known as “Christendom”) come about? Prob due to the demise of the Roman Empire which slowly lost moral authority (read more and more civil unrest and loss of respect for authority) from the time of Jesus.
By the time of Constantine (300AD), the first Christian Roman Emporer, he realised that the Roman Empire could regain ethical authority if Christianity was made the State religion. From this time onward, and even through the Dark Ages, civil authority roles (deriving from Roman structure) more and more became filled by allegedly virtuous and respected Christians - eventually ordained christians.
I believe this sort of thing used to happen in a small way in rural popultaion centres of Ireland. Country priests (more or less educated and respected), the only “authority” for miles around, de facto tended to garner huge prestige and in the absence of a consistent civil administration seemed to attract considerable civil powers (whether de facto or de juro I am not sure) and effectively acted as magistrates with civil powers in the 1800s.
We still see vestigial evidence of this sort of thing - Church records (eg baptismal register entries) used to later authenticate civil documents that are missing or never recorded in rural areas (e.g. registration of birth).