523. Charlemagne: Return of the Kings (Part 1)

2708.915 - 2728.901 Tom Holland

And of course, as Saint Peter's caretaker is the pope, so effectively the pope is now the master of this great swathe of lands that previously had been ruled by the emperor in Constantinople and then had been purloined by the Lombard king. And the news of this when it reaches Constantinople, I mean, the emperor is absolutely furious. He says, these are mine. But the Pope, he doesn't care.