Author
- Order of the Argonauts of Saint Nicholas1
- Ottmar Luscinius1
- Otto III1
- Otto di guardia e balia (Florence, Tuscany)1
- Pacholo Falconieri1
- Palazzo degli Anziani1
- Paramahaṃsa Parivrājaka1
- Paramahaṃsa Vrājakācārya1
- Paramaśivāśrama1
- Paraśurāma1
- Paschualis Bernardus1
- Paul of Aegina1
- Paul of Pergula1
- Paulus Fabricius1
- Pedanius Dioscorides1
- Pedro Luis de Borja Lanzol de Romaní1
- Pedro de Gracia1
- Persius1
- Peter Lombard1
- Peter Paludanus1