Aaron ben Zerah was a French Jew who suffered martyrdom at Estella in the Kingdom of Navarre on March 5, 1328. Banished from his original home in 1306 by order of King Philip the Fair of France, who confiscated his property, he sought refuge at Estella, where, after a residence of twenty years, he, his wife, and several of his sons were slaughtered by Christian population in an anti-Jewish revolt. The horrors of that event are described in "แบedah la-Derek," a work written by Aaron's son Menahem ben Aaron ibn Zerah, who escaped death.
References
This article incorporates text from a publication now in the public domain: Ginzberg, Louis (1901). "Aaron ben Zerah". In Singer, Isidore; et al. (eds.). The Jewish Encyclopedia. Vol. 1. New York: Funk & Wagnalls. p. 22.