Author
- Pietro Lamberti1
- Pius IV1
- Pius V1
- Podius, Milanutius1
- Pope1
- Principio Fabricii1
- Privy Council of the United Kingdom1
- Prizrenli Şemʻî1
- Prudentius1
- Qarajah Aḥmad1
- Qasem-e Anvar1
- Qazwīnī, Aḥmad ibn ʻAbd al-Awwal, d. 15581
- Qāsim ibn Yūsuf Abū Naṣrī Haravī1
- Ranieri Farnese1
- Ranuccio Farnese1
- Rasūl ibn Ṣāliḥ Āydīnī1
- Regiomontanus1
- Republic of Venice1
- Ressani family1
- Richard Ward1