Must be true. Saw it on BBC, which never lies about the Papacy ... much.
Now what about this Pope Joan character? True? False? Was she, wasn't she? The Vatican ain't talkin'.
IMNVHO, the problem with Roman Catholicism is that it's so .... well, like "Roman." I mean it probably has not escaped your notice that both the Pope and Julius Caesar share the Pontifex Maximus title?
That, and a million other things, are a living connection to the classical world of Greece and Rome, which I personally think is often quite admirable, but excites nothing but fear and loathing in others who are always mumbling about "idolatry, pagan practices, and rituals."
That all of Bullfinch's Mythology somehow got itself converted, baptized, and sanctified does not subtract a jot from the Sacrifice of Christ for our Salvation.