Name
- Sandoval y Rojas, Francisco Gomez, Duque de Lerma1
- Sandoval, Diego Gomez1
- Sandoval, Sancho, politician and military officer, fl 1638-16861
- Sarmiento d'Acuña, Diego, Count Gondomar, Spanish Ambassador in London1
- Saña, Vicente, Marques de San Felipe, scholar; ambassador of the Spanish Empire, 1669-17261
- Sedeño, Antonio1
- Soarez, Diego1
- Sologuren, Juan1
- Sparry, Francis1
- Spinola, Ambrosio, Marquis, of Add MS 363191
- Suarez de Sandoval, Diego1
- Sueyro, Emanuel1
- Tailler, English captain1
- Tarsis, Juan Baptista, of Paris1
- Tornera Sota, Juan de la1
- Tostado, Juan1
- Triest, Antonio, Bishop of Ghent1
- Turrillo de Yebra, Francisco1
- Uchoa de la Vega, Diego1
- Ureta, Pedro1