Mehmed Emin Halvetî of Safranbolu was a 19th-century master of the Şâbânî branch of the Halvetiyye order. He guided disciples at his lodge in Safranbolu's old bazaar; the Hamidiye Mosque was later built on its site. In the Emin Efendi Tomb beside the mosque he is buried with his sons and a descendant. His death date varies (Wikipedia 1883; inscription AH 1283/1866). (Sources: academic journal; Karabük University UNIS; Wikipedia.)