Veled-i Yaniç was a Sufi whose real name was Mahmut. His father was Hadji Hayruddin, the son of Yaniç. He worked under state service during the reigns of Murad Hudavendigar the first and Yıldırım Bayezid. He was one of the commanders of the Ottoman state, he also combated in the Battle of Ankara. He died probably in the 1450s. He is buried in the courtyard of the mosque which is known by his name.