Author
- Ptolemaeus Tancredius1
- Ptolemy1
- Qasem-e Anvar1
- Qutb al-Din Razi1
- Qutb al-Din al-Shirazi1
- Ranieri Farnese1
- Ranuccio Farnese1
- Regia Camera (Duchy of Milan)1
- Regiomontanus1
- Revanî1
- Richard Ward1
- Ro. Ba1
- Robert Fabyan1
- Robert Reade1
- Rodolfo Pio da Carpi1
- Roman Catholic Archdiocese of Siena1
- Royal Chancellery of Granada1
- Rudulphus Bollartus1
- Sadr al-Shari'a al-Asghar1
- Safi al-Din al-Urmawi1