The Eyüp Sultan Mosque is situated in the district of Eyüp on the European Side of Istanbul, near the Golden Horn, outside the Walls of Constantinople. Built in 1458, it was the first mosque constructed by the Ottoman Turks following their conquest of Constantinople in 1453.
The mosque rises next to the place where Abu Ayyub al-Ansari, the standard-bearer of the Islamic prophet Muhammad, is said to have been buried during the Arab assault on Constantinople in 670. His tomb is greatly venerated by Muslims, attracting many pilgrims. Some of the personal belongings of Muhammad are preserved in the tomb.