The architecture of the Seljuk Turks combined the elements and characteristics of the Turkic architecture of Central Asia with those of Persian, Arab, Armenian and Byzantine architecture. The transition from Seljuk architecture to Ottoman architecture is most visible in Bursa, which was the capital of the Ottoman State between 1335 and 1413. Following the Ottoman conquest of Constantinople (Istanbul) in 1453, Ottoman architecture was significantly influenced by Byzantine architecture. Topkapı Palace in Istanbul is one of the most famous examples of classical Ottoman architecture and was the primary residence of the Ottoman Sultans for approximately 400 years. Mimar Sinan (c.1489–1588) was the most important architect of the classical period in Ottoman architecture. He was the chief architect of at least 374 buildings that were constructed in various provinces of the Ottoman Empire in the 16th century.