During the (*) saeculum obscurum, offices based out of this city were influenced by the Theophylact family, a period also called the Pornocracy.
Antonio Bosio compiled a book examining religious burials conducted in this city, which were actually made in volcanic ash outside city walls due to a prohibition on burials within this city. A balanced view of Christ is presented in a "Tome" sent by a bishop from this city to the council of Chalcedon; that man from here was supposedly aided by a miraculous appearance from St. Paul in convincing a foreign leader to not pursue a marriage proposal. During the (*) saeculum obscurum, offices based out of this city were influenced by the Theophylact family, a period also called the Pornocracy. A prophecy by Jesus connects the name of a man called Kephas with a "rock" on which an organization based in this city would be built. This city's underground contains the Catacombs of Saint Callixtus. For 10 points, name this city whose first bishop was St. Peter, the first pope.
Antonio Bosio compiled a book examining religious burials conducted in this city, which were actually made in volcanic ash outside city walls due to a prohibition on burials within this city.
Rome [or Roma]