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-Shah
Suleiman-Shah was the son of sultan Muhammad I Tapar. His mother was Gowhat Khatun the daughter of Isma'il bin Yaquti. His three brothers Mahmud II, Toghrul II and Mas'ud became the Sultans of the Seljuk Empire. He was formerly with his uncle, Sultan Sanjar, who had made him heir apparent and put his name in the Khutbah on the pulpits of Khurasan. After Sanjar had endured from the Oghuz, Suleiman-Shah took the command of the Khurasan army, although they proved too weak to deal with the Oghuz, Suleiman-Shah went to Khwarazm Shah, who married him to the daughter of his brother Aqsis. The couple had a son, who was named Sanjar. In 1152 after the accession of Sultan Muhammad, Suleiman-Shah along with others attacked Muhammad and he was granted the title "Al-Melil al-Mustadir" by the caliph. He was proclaimed sultan at Baghdad in 1156/57, but was later defeated by Muhammad.