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.
Suleiman the Magnificent
Pargalı Ibrahim Pasha was a friend of Suleiman from before his accession. Ibrahim was originally a Christian from Parga (in Epirus), who was captured in a raid during the 1499–1503 Ottoman-Venetian War, and was given as a slave to Suleiman most likely in 1514. Suleiman made him the royal falconer, then promoted him to first officer of the Royal Bedchamber. Ibrahim Pasha rose to Grand Vizier in 1523 and commander-in-chief of all the armies. Suleiman also conferred upon Ibrahim Pasha the honor of "beylerbey" of Rumelia (first-ranking military governor-general), granting Ibrahim authority over all Ottoman territories in Europe, as well as command of troops residing within them in times of war. According to a 17th-century chronicler, Ibrahim had asked Suleiman not to promote him to such high positions, fearing for his safety; to which Suleiman replied that under his reign, no matter what the circumstance, Ibrahim would never be put to death.