Was the Spanish Inquisitor Torquemada Jewish?

No, Tomás de Torquemada, (1420 - September 16, 1498) was a fifteenth-century Spanish Dominican friar and the first Grand Inquisitor in Spain's movement to restore Christianity among its populace in the late fifteenth century. As well as being the Grand Inquisitor, Torquemada was also theconfessor to Isabella I of Castile. He is notorious for his zealous campaign against the crypto-Jews and crypto-Muslims of Spain. He was one of the chief supporters of the Alhambra Decree, which expelled the Jews from Spain in 1492. About 2,000 people were burned at the stake by the Spanish Inquisition between 1480 and 1530. In modern times, his name has become synonymous with the Christian Inquisition's horror, religious bigotry, and cruel fanaticism.

It is notable that Tomás de Torquemada was the nephew of the celebrated theologian Juan de Torquemada who was the son of a converso (a Jew who converted to Christianity). Tomás de Torquemada may have some Jewish ancestry, but it would have been his grandparents at most and did not figure into his personal life.