Saint Mary of the Mongols (full name in Greek: Θεοτòκος Παναγιώτισσα (pr. Theotokos Panaghiótissa, lit. "All-Holy Theotokos") or Παναγία Μουχλιώτισσα (pr. Panaghia Muchliótissa); Turkish name: Kanlı Kilise (meaning:Bloody Church), is an Eastern Orthodox church in Istanbul. It is the only Byzantine church of Constantinople that has never been converted to a mosque, always remaining open to the Greek Orthodox Church.