The Rome of Pope Paschal I: Papal Power, Urban Renovation, Church Rebuilding ... - Caroline Goodson - Google Books

https://books.google.de/books?id=d-re2Efyy40C&pg=PA215&dq=Petronilla+Karolinger&hl=en&sa=X&redir_esc=y#v=onepage&q=Petronilla%20

In the early ninth century, a critical time in Rome's transformation from ancient capital to powerful bishopric to new state capital, Pope Paschal I undertook a building campaign to communicate his authority and Rome's importance as an ancient and…