Findings:
- Pietro Belluschi
- Pietro Lombardo
- Pietro Lorenzini (user)
- Pietro Aldobrandini
- Pietro Antonio Cataldi
- Pietro Tullio
- Pietro Aretino
- Mary Doria Russell
- pietro (user)
- Pietro Mascagni
- Pietro Bembo
- Pietro d'Apone
- Pietro Angelo Secchi
- Doria Pamphilj
- Andrea Doria
If you Log in you could create a "Pietro Doria" node. If you don't already have an account, you can register here.