A scholar and Sufi of the Yıldırım Bayezid era who settled in Mudurnu and trained students. He authored works including Müştemilü'l-ahkâm, ed-Daavâtü'l-me'sûre and Ferâidü'l-leâlî. He died in 864/1460 in Mudurnu; his grave is reported near the door of the Yıldırım Bayezid (Great) Mosque (per local tradition; may be disputed). (Sources: evliyalar.net 'Fahreddin Rûmî'; İslâm Âlimleri Ansiklopedisi)