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.
Hafsa Sultan (wife of Selim I)
She was also the first Ottoman imperial women who held title "sultan" after her given name, replacing title "hatun". This usage reflected the Ottoman conception of sovereign power as "family prerogative". Consequently, the title valide hatun (title for living mother of the reigning Ottoman sultan before 16th century) also turned into valide sultan, made Hafsa the first valide sultan. Her period signalled the shifting status of the sultan's mother and her increased share in power.
After the birth of her son Suleiman, born on 6 November 1494 in Trabzon, she gave birth to four daughters: Hatice, Fatma, Beyhan and Hafsa.