In 1072 Sicily fell to the Normans and the Jews were again brought under the supremacy and jurisdiction of the Catholic Church. The Norman Kingdom of Sicily lasted until 1194, when it fell to the Hohenstaufens. In 1210, the Jews of Sicily faced such persecution from the Crusaders that Holy Roman Emperor Frederick II had to intervene on their behalf. Frederick also employed Jews from Sicily at his court to translate Greek and Arabic works. Persecution of the Jews continued. But, despite persecution, Sicilian Jews continued to thrive. Some Sicilian rabbis communicated with Maimonides posing religious questions.