Sheikh Dede Osman Avni Mausoleum

Sheikh Dede Osman Avni Mausoleum Sheik Dede Osman Avni was the sheikh of the Kadiri sect for 70 years in the lodge at the Mevlid-i Halil Mosque and passed away in 1883. Some of Dede Osman Avni Efendi’s books and personal belongings are on display at the entrance of the maqam.