- Piccolomini family2
- Piccolomini, Antonio Maria d'Enea2
- Pilgrims and pilgrimages2
- Pius II, Pope, 1405-14642
- Popes2
- Prescriptions, formulae, receipts, etc.2
- Priesthood2
- Privileges and immunities, Ecclesiastical2
- Psychology2
- Quarter bindings2
- Religious life2
- Requesens, Antonio de'2
- Requesens, Bernardo de'2
- Rhetorica ad Herennium2
- Roman Civil War (Rome : 43-31 B.C.)2
- Rossi, Girolamo de'2
- San Marziano (Monastery : Tortona, Italy)2
- San Miniato, Cosimo di2
- San Miniato, Giovanni di2
- San Miniato, Jacopo di2