The dervish sheikh who gives his name to the Şeyh Meknun (Açıkbaş) zaviye and tomb on the Tokat–Turhal road, near the Yeşilırmak (Hıdırlık) Bridge. The building is dated to the last quarter of the 13th century and is among Tokat's oldest surviving structures; lacking an inscription, archival research proposes correcting the name to 'Şeyh Bektut (Açıkbaş).' Evliya Çelebi records it as a Bektashi lodge. (Sources: Gaziosmanpaşa Univ. Tokat History and Culture Symposium, Demirtaş 2015; Kültür Portalı)