İlber Ortaylı (* 1947) - Turkish historian - was born in Bregenz
The Turkish historian İlber Ortaylı is a proponent of this claim, citing the multicultural make-up of the state and Sultan Mehmed's acceptance of certain Byzantine court customs.
During the YGA leadership program the young leaders learn through YGA lecturers such as İlber Ortaylı, İzzet Garih, Ali Sabancı, Prof. Aydın Uğur, Hüsnü Özyeğin, Ali Koç, Çetin Yüceuluğ, Sinan Yaman, Tınaz Titiz, Ümran Beba, Prof. Erhan Erkut, Muzaffer Akpınar, Scott Berrie, Jim Rasmussen, Yuri Khlebnikov and Virginia Foxx as well as visiting different NGOs.