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.
Salim bin Thuwaini, Sultan of Muscat and Oman
Sultan Sālim bin Thuwainī Āl Saʿīd () was the Sultan of Muscat and Oman from 11 February 1866 – October 1868. He was the eldest son of Sultan Thuwaini bin Said and his wife Sayyida Ghaliya bint Salim Al-Busaidiyah, and acceded to the throne in succession to his father. Lewis Pelly and Henry Bartle Frere were deeply disappointed by the death of Sultan Thuwaini bin Said in their hopes for a military action against the Wahhabis, and were well aware of Salim's opposing views and refusal to join the ensuing war. Hence the British Political Resident General in the Gulf at Bushehr, Colonel Lewis Pelly, fiercely opposed the recognition of Salim whom he feared was to stop foreign interference and forge a peace deal with the Wahhabis.