Author
- Niccolò Balsamo1
- Niccolò D'Andrea Piccolomini1
- Nicolaccio de' Mignanellis1
- Patrick Graham, 1st Lord Graham1
- Paul III1
- Pedro Luis de Borja Lanzol de Romaní1
- Pedro de Menezes, 1st Count of Vila Real1
- Petrus de Monastero1
- Philippus1
- Piccolomini1
- Pius II1
- Ressani family1
- Robert Gazeley1
- Roger Bigod, 2nd Earl of Norfolk1
- Sacro Regio Consiglio1
- Signoria of Florence1
- Simon de Bon1
- Simone di Nicolo Petroni1
- Taddea Salamon1
- Tengoccio d'Enea de Piccolomini1