Title
- On accounting and commissions1
- On charms and talismans1
- Opuscula2
- Orations2
- Ordo judicarius1
- Organon1
- Orthographia1
- Ottoman Turkish expansion on qaṣīdat al-Burdah1
- Paludi pontine1
- Pand-i ʻAṭṭār1
- Panormia1
- Papal bull2
- Papal diaries1
- Partial Chronicon pontificum et imperatorum with continuations and list of bishoprics1
- Paschale carmen1
- Pasquillus in aulicos1
- Passio sancti Blasii1
- Passione del nostro signore1
- Pattern-book2
- Pauline Epistles1