Siddur Tefila, Karaite prayer-book, [71].

Sidillo (Sid), Samuel, scholar, [392].

Sigismund, emperor, [216], [218], [227].
and the Jews, [219], [248].
appoints rabbis, [227].
in the Hussite war, [225].

Sigismund III, of Poland, friendly to Jews, [643].

Sigismund Augustus, of Poland and Joseph Nassi, [602].
and the Reformation, [646].
protects Jewish trade, [633].

Silesia, Jews of, persecuted, [260][263].

Silva, de, Diogo, inquisitor-general of Portugal, [508], [513].

Silva, de, Miguel, opposes David Reubeni, [498][499].

Simon bar Yochaï, pretended author of the Zohar, [12][14], [15], [16], [18], [20], [21], [618], [623].

Simon ben Zemach Duran, rabbi of Algiers, [199][200].
at Palma, [247].
controversial writer, [238].