Author
- Qutb al-Din al-Safawi1
- Qāsim ibn Yūsuf Abū Naṣrī Haravī1
- Rasūl ibn Ṣāliḥ Āydīnī1
- Real Monasterio de Santa Clara1
- Regia Camera (Duchy of Milan)1
- Regiomontanus1
- Republic of Venice1
- Revanî1
- Richard Brooke1
- Richard Carmarden1
- Richard Robinson1
- Ro. Ba1
- Robert Cooke1
- Robert Fabyan1
- Rodolfo Pio da Carpi1
- Roger Alban1
- Royal Audiencia of Lima1
- Royal Chancellery of Granada1
- Rudulphus Bollartus1
- Rui de Pina1