There were many instances of anti-Jewish violence under both the Muslim and Christian regimes in Spain with the subsequent killing and martyrdom of Jews, such as the.
Sacks of Córdoba (1009–13), 1066 Granada massacre and the Massacre of 1391.
Some examples of martyred famous Jews are Israel Alnaqua (died 1391) in Toledo and Joseph ibn Shem-Tov (died 1480).

During the Spanish Inquisition, many of those who were executed were Jews who refused to convert to Christianity.
The status of those crypto-Jews who had pretended to adopt Christianity in an attempt to avoid persecution is unclear in Jewish Law that forbids Apostasy in Judaism under all circumstances.
True adherents of Judaism were expelled from Spain following the Alhambra Decree of 1492 while remaining in Spain would mean death and martyrdom.

Maria Barbara Carillo (1625-1721) was burned at the stake for seeking to return to Judaism.
There were many instances of anti-Jewish violence under both the Muslim and Christian regimes in Spain with the subsequent killing and martyrdom of Jews, such as the. Sacks of Córdoba (1009–13), 1066 Granada massacre and the Massacre of 1391. Some examples of martyred famous Jews are Israel Alnaqua (died 1391) in Toledo and Joseph ibn Shem-Tov (died 1480).
During the Spanish Inquisition, many of those who were executed were Jews who refused to convert to Christianity. The status of those crypto-Jews who had pretended to adopt Christianity in an attempt to avoid persecution is unclear in Jewish Law that forbids Apostasy in Judaism under all circumstances. True adherents of Judaism were expelled from Spain following the Alhambra Decree of 1492 while remaining in Spain would mean death and martyrdom.
Maria Barbara Carillo (1625-1721) was burned at the stake for seeking to return to Judaism.
Martyrdom in Judaism