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- Sixtus II, Pope
- Sixtus III, Pope
- Smaragdus
- Soter, Pope
- Soubirous, Bernadette
- Spinola, Charles
- Stanislas Kostka
- Stommeln, Christine of
- Stone, John
- Storey, John
- Story, John
- Suso, Henry
- Sweden, Bridget of
- Tabbs
- Thaddeus
- Thaddeus, Judas
- Thaumaturgus, Gregory
- Thenew
- Thenog
- Thief, Good
- Thirkeld, Richard
- Thompson, James
- Thorne, John
- Throstan
- Tolentino, Nicholas of
- Tours, Gregory of
- Tours, Martin of
- Urach, Conrad of
- Valois, Felix of
- Veuster, Joseph de
- Vianney, John Baptist Mary
- Vincent Pallotti
- Viraggio, James of
- Viterbo, Crispin of
- Wales, David of
- Walworth, James
- Whiting, Richard
- Wise, Gildas the
- Xavier, Francis
- Younger, Ebba the
- Younger, Melania the
- Yves
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