The Sokullu Mehmet Pasha Mosque (Turkish:  Sokullu Pasa Camii) is an Ottoman mosque located in the Kadirga neighborhood of the >Eminonu district of Istanbul, Turkey.The Sokoullu Mehmet Pasha Mosque was designed by Ottoman imperial architect Mimar Sinan for Grand Vizier Sokollu Mehmet Pasha (husband of one of the granddaughters of Sultan Suleiman the Magnificent, Princess Esmahan. Its building took place from 1571 to 1572. The mosque is official named after Princess Esmahan, but is more commonly known for its association with her far more famous husband. The mosque is noted for its architecturally challenging location on a steep slope. Sinan resolved this issue by fronting the mosque with a two-story a courtyard. The bottom story (now in ruins) was divided into shops, whose rents were intended to help support the upkeep of mosque. The upper story with an open colonnaded courtyard had the spaces between the columns on three sides walled off to form small rooms, each with a small window, fireplace and niche to store bedding, forming the living accommodations for a madrasah. Instruction for students was given in the prayer hall itself, or in the dershane, a large domed room over the western staircase. The fourth side of the courtyard is the mosque itself, which is designed as a hexagon inscribed in a rectangle, topped by a dome with four small semi-domes in the corners.