Tomás de Torquemada, Spanish friar (b. 1420)
Tomás de Torquemada (14 October 1420 – 16 September 1498), also anglicized as Thomas of Torquemada, was a Castilian Dominican friar and first Grand Inquisitor in Spain's movement to homogenize religious practices with those of the Catholic Church in the late 15th century, otherwise known as the Spanish Inquisition.

Mainly because of persecution, Muslims and Jews in Spain at that time found it socially, politically, and economically expedient to convert to Catholicism (see Converso, Morisco, and Marrano). The existence of superficial converts from Judaism (i.e., Crypto-Jews) was perceived by the Spanish monarchs of that time (King Ferdinand and Queen Isabella) as a threat to the religious and social life of Spain. This led Torquemada, whose uncle had converso ancestors, to be one of the chief supporters of the Alhambra Decree that expelled the Jews from Spain in 1492.

Owing to his widespread use of torture to extract confessions, and advocacy of burning at the stake those deemed guilty, Torquemada's name has become synonymous with cruelty, religious intolerance and fanaticism.