Tags: Religious Building.
The Defterdar Mosque or in long form the Defterdar Mahmut Efendi Mosque (Turkish: Defterdar Camii Defterdar Mahmut Efendi Camii) is a historical mosque located in Eyüp Istanbul Turkey. It was commissioned by Defterdar Nazlı Mahmut Efendi (c. 1500-1546) and built by architect Mimar Sinan in 1542 (defterdar was the head of the financial department in Ottoman Empire).