You won’t find many Catholic churches named after Pope Benedict IX.

He was a puppet pope, installed by his powerful family at a time when rival clans ruled Rome. The young man seemed uninterested in religious life, rushing through ordination only after his election to the Throne of St. Peter in 1032.

Benedict IX squandered the papacy’s moral and financial riches in bordellos and banquet halls. His violence and debauchery “shocked even the Romans,” said philosopher Bertrand Russell, which is kind of like being busted for lewdness in Las Vegas....