Şehzade Mosque is a 16th-century Ottoman imperial mosque located in the district of Fatih, on the third hill of Istanbul, Turkey. It was commissioned by Suleiman the Magnificent as a memorial to his son Şehzade Mehmed who died in 1543. The mosque was one of the earliest and most important works of architect Mimar Sinan and is one of the signature works of Classical Ottoman architecture.
The mausoleum of Mehmed was the first element of the complex to be completed, in 1544. The mosque and the rest of the complex were built between 1545 and 1548. The complex was Sinan's first important imperial commission.
The mosque is entered through a marble-paved colonnaded forecourt with an area equal to that of the mosque itself. The courtyard is bordered by a portico with five domed bays on each side, with arches in alternating pink and white marble. At the center is an ablution fountain (şadırvan), which was a later donation from Sultan Murat IV.
Sinan added domed porticos along the lateral façades of the building (on the northeast and southwest sides) that help to conceal the supporting buttresses of the structure and to give the exterior a greater sense of monumentality.
The twin minarets, attached to the mosque, have two balconies with muqarnas sculpting and interlacing geometric decoration in low relief carved on their shafts. This level of decorative detail on minarets is particular to this mosque and was rarely repeated in later Ottoman mosques. While mosques sponsored by other members of the royal family sometimes had two minarets, the Şehzade Mosque is the only non-sultanic mosque designed by Sinan with two minarets that each had two balconies.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.