Name
- Stephen III, Pope1
- Stuart, Charles, GCB, afterwards Baron Stuart de Rothesay1
- Sulpitius1
- Symeon Trevirensis, Saint1
- Teixeira, Joao, Cosmographer to Joao I V1
- Thaddæus Neapolitanus1
- Thecla, Saint1
- Theodoli, Theodolo, Marchese di Santo Vito1
- Tortosa, Abraham, Judaus1
- Trevisani, Family1
- Trithemius, Johannes, German abbot and polymath, 1462-15161
- Tubières de Grimoard, Anne Claude Philippe, Comte de Caylus1
- Tuffanini, Giacomo1
- Turkey, Sultans of. Amurath II1
- Turkey, Sultans of. Mahomet IV1
- Ubaldini, Roberto, Prior of S Maria del Saxo1
- Urban IV, Pope1
- Urban VIII, Pope1
- Urbe, Laurentius, dictus Ruzius, familiaris Card. Ursini1
- Vineis, Petrus1