or Dönmeh
Jewish-Islamic sect founded in Salonika (now Thessaloniki, Greece) in the late 17th century.
Its members were followers of Shabbetai Tzevi , whom they believed to be the messiah . Arrested by Ottoman authorities in 1666, he chose conversion to Islam over death, as did his followers, who believed that his conversion was a step in the fulfillment of messianic prophecy. While accepting Islam, they secretly practiced various Jewish rites, preserved some knowledge of Hebrew, and refused to intermarry with Muslims. The community moved to Turkey in the early 20th century and gradually was assimilated, resisting Jewish attempts to return them to Judaism.