Sheikh Qasim al-Halwati, a sheikh of the Khalwati order whose tomb-mosque stands in central Mardin (near the Yeni Kapı bath). Its style places it after the 15th–16th century; the tomb holds two cenotaphs, his and his daughter's. Exact death date not recorded. (Sources: Mardin Provincial Directorate; Kültür Portalı; ÇEKÜL)