Territorial evolution of the Ottoman Empire
Suleiman I ( "Süleymān", ; almost always "Kanuni Sultan Süleyman") (6 November 1494  – 5/6/7 September 1566), was the tenth and longest-reigning Sultan of the Ottoman Empire, from 1520 to his death in 1566. Suleiman became a prominent monarch of 16th century Europe. Suleiman personally led Ottoman armies to conquer the Christian strongholds of Belgrade, Rhodes, and most of Hungary. In 1541 he annexed central Hungary while Transylvania became an Ottoman vassal. However rest of the Kingdom of Hungary including western and northern (Upper) Hungary and Croatia still were Habsburgs possessions. Suleiman also conquered Iraq in his conflict with the Safavid dynasty. Under his rule, the Ottoman fleet dominated the seas from the Mediterranean to the Red Sea and the Persian Gulf.
Selim I
Selim I wanted to use the Ottoman Empire's central location to completely cut the ties between Shah Ismail's Safavid Empire and the rest of the world. Even though the raw materials for important Ottoman silk production at that time came from Persia rather than developed within the Ottoman Empire itself, he imposed a strict embargo on Iranian silk in an attempt to collapse their economy. For a short amount of time, the silk resources were imported via the Mamluk territory of Aleppo, but by 1517, Selim I had conquered the Mamluk state and the trade fully came to a standstill. So strict was this embargo that, "merchants who had been incautious enough not to immediately leave Ottoman territory when war was declared had their goods taken away and were imprisoned," and to emphasize frontier security, sancaks along the border between the two empires were given exclusively to Sunnis and those who did not have any relationship with the Safavid-sympathizing Kızılbaş. Iranian merchants were barred from entering the borders of the Ottoman Empire under Selim I. Shah Ismail received revenue via customs duties, therefore after the war to demonstrate his commitment to their thorny rivalry, Selim I halted trade with the Safavids—even at the expense of his empire's own silk industry and citizens.