Şehzade
Şehzade or (Germanized) Schehsade ( Ottoman - Persian شهزاده Schehzāde , DMG Šehzāde , from pers. Šah , "ruler", and zāde , "child / son") was the title of all princes of the Ottoman Empire . It is believed that the title was introduced by Mehmed I for his sons; about the same time as the title of Padishah . Later all sons of the Şehzade were allowed to call themselves that. The teachers of the Şehzade werecalled Lālā .
In Istanbul there is the Şehzade Mosque (Şehzade Camii) known as the “Prince 's Mosque ” , which Sultan Süleyman I had built in memory of his favorite son, Prince Mehmet, who died at an early age.