Siceli, 22.
      Siciliani, 224, 234; II, 209.
      Sicilie (Due), vedi Napoli e Sicilia.
      Siculi, 22, 28, 32, 33, 43.
      Sidone, 43.
      Siena, 28, 115, 195, 205, 255, 257, 272, 277; II, 32, 33.
      Sièyes, II, 145.
      Siface, 44.
      Sigismondo, imperatore, 261, 266.
      Signorelli Luca, II, 44.
      Sigonio, II, 33.
      Silesia, II, 107.
      Silla, 49, 50.
      Silvestro II, papa, 155, 156, 169, 291.
      Silvestro III, papa, 163.
      Silvestro (fra), confratello del Savonarola, II, 11.
      Simmaco, 88, 107.
      Sinigaglia, 124; II, 13.
      Sion, II, 15.
      Siracusa, 25, 67.
      Siria, 45, 51, 53, 67, 74, 215.
      Sirmio, 73, 107.
      Sismondi, 205, 235, 247, 248; II, 171.
      Sismondi (i), II, 91.
      Sisto IV, papa, 273, 274, 275.
      Sisto V, papa, II, 62, 122.
      Slavi, 22, 65, 137, 140.
      Slavoni, 143.
      Smolensko, II, 157.
      Soana, 115.
      Sobieski, II, 73.
      Smerago Niccolò, 284.
      Socino, II, 9.
      Socrate, 56; II, 41.
      Soderini Pier, II, 16, 36.
      Soemi, 73.
      Soglia, cardinale, 231, 235.
      Soissons, 123.
      Solimene, II, 173.
      Solone, 129; II, 130.
      Somma Campagna, II, 216, 220.
      Sona, II, 216, 220.
      Soncino, 265.
      Sonderbund, II, 206.
      Sonnaz, II, 216, 220, 222.
      Sordello di Mantova, 284.
      Sorrento, II, 81.
      Spagna, 44, 45, 46, 50, 53, 74, 75, 81, 84, 136, 296; II, 6, 11, 16, 19, 24, 48, 49, 50, 52, 53, 60, 64, 65, 66, 67, 68, 69, 70, 74, 78, 93, 94, 95, 96, 97, 98, 99, 100, 107, 111, 112, 113, 116, 120, 132, 154.
      Spagnuola lingua, 33; II, 77.
      Spagnuoli, 46, 50, 233; II, 9, 12, 16, 18, 23, 24, 28, 32, 33, 50, 58, 61, 64, 65, 69, 70, 77, 78, 101, 105, 108, 109, 111, 156.
      Spallanzani, II, 172.
      Sparta, 221.
      Spartaco, 51.
      Spartani, 40.
      Spielberg, II, 199.