Dönmeh
The Dönmeh (Hebrew: דוֹנְמֶה, romanized: Dōnme, Ottoman Turkish: دونمه, Turkish: Dönme) are a group of Sabbatean crypto-Jews in the Ottoman Empire who embraced Islam, but retained their Jewish faith and Kabbalistic beliefs in secret. The Sabbatean movement was centered mainly in Thessalonika.