Author
- Pietro Flores1
- Pietro Lamberti1
- Pistoia1
- Pius IV1
- Pius V1
- Privy Council of the United Kingdom1
- Ranuccio Farnese1
- Razi al-Din ibn al-Hanbali1
- Republic of Venice1
- Richard Ward1
- Robert Beale1
- Robert Cooke1
- Robert Fabyan1
- Rodrigo de Rueda1
- Roman Catholic Archdiocese of Siena1
- Royal Audiencia of Lima1
- Rui de Pina1
- Sebastian Schindler1
- Senate of the Republic of Venice1
- Shukr Allāh ibn Aḥmad Rūmī1