Name
- Querini, Marino1
- Ranieri, Family1
- Reinerius1
- Roddi, Filippo, LLD, of Ferrara1
- Rossetti, AIfonso, Marchese1
- Rossetti, Carlo, Cardinal1
- Rotenham, Anton, Bishop of Bamberg1
- Sabinus, Flavius Andreas1
- Sacro Bosco, Johannes, of Add MS 228081
- Schleint, Sifrid, Pronunciator Conventualis in Amorbach1
- Segni, Alessandro, Gentleman of the Chamber to the Grand Duke of Tuscany1
- Sigebertus Gemblacensis1
- Sigismund, Emperor of Germany, of Add MS 189221
- Sintesius, Pindarus1
- Spada, Bernardino, Cardinal,Nuncio to Parma1
- Spada, Giovanni Battista, Governor of Lucca, Patriarch of Constantinople, Cardinal 16541
- Stephen III, Pope1
- Stuart, Charles, GCB, afterwards Baron Stuart de Rothesay1
- Sulpitius1
- Symeon Trevirensis, Saint1