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Lives of the Saints:

How They Changed the World

Saint Thérèse of Lisieux (1873–1897)

Patron saint of missionaries, florists, and the sick, especially those suffering from AIDS


Feast day: October 1

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Saint Thomas Aquinas (1225–1274)

Patron of all Catholic educational establishments.


Feast day: January 28

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Saint Thomas Becket (1118–1170)

Patron saint of the clergy, Exeter College, and Portsmouth, England


Feast day: December 29

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Saint Thomas More (1478–1535)

patron saint of politicians


Feast day: June 22

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Saint Thomas the Apostle (first century)

Patron saint of architects, construction workers, and cooks


Feast day: July 3

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Saint Thorfinn (d. 1285)


Feast day: January 8

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Saint Timothy (first century)

Patron saint against intestinal disorders and stomach diseases


Feast day: January 26

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Saint Turibius of Mogrovejo (1538–1606)

Patron saint of Latin American bishops, rights of native peoples, and Peru


Feast day: March 23

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Saint Ursula Ledóchowska (1865–1939)

Patron saint of Polish girls as well as orphans and educators.


Feast day: May 29

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Saint Valentine (d. 269)

Patron saint of engaged couples, happy marriages, and love


Feast day: February 14

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Saint Veronica Giuliani (1660–1727)


Feast day: July 10

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Saint Vincent de Paul (c. 1580–1660)

Patron saint of charities


Feast day: September 27

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