Transformation of the Ottoman Empire
Sultan Suleiman I (r. 1520–1566) was the longest-reigning sultan in Ottoman history, but the last years of his reign were characterized by uncertainty over who would be his successor. Suleiman had three sons who could hope to succeed, Mustafa, Bayezid, and Selim. While the latter two were the children of Suleiman's wife Hurrem Sultan, the first was the son of an earlier concubine. Mustafa may have felt that his half-brothers possessed an unfair advantage over him, and thus worked to secure the favor of the military. Perhaps suspecting that Mustafa planned to dethrone him just as his own father had done to his grandfather, Suleiman acted first and in 1553 ordered that Mustafa be executed. The death of Hurrem Sultan in 1558 triggered open conflict between the two remaining candidates, and Selim ultimately emerged victorious. Suleiman further strengthened his son's position by arranging a marriage between Selim's daughter and the influential Sokollu Mehmed Pasha (Grand Vizier 1565–1579). Suleiman died in 1566, while besieging the fortress of Szigetvar in Hungary, bringing Selim to the throne.
Sultanate of Women
The Sultanate of Women () was the nearly 130-year period during the 16th and 17th centuries when the women of the Imperial Harem of the Ottoman Empire exerted extraordinary political influence over state matters and over the (male) Ottoman sultan, starting from the reign of Suleiman the Magnificent. Many of the Sultans during this time were minors and it was their mothers, the Valide Sultans, or their wives, the Haseki Sultans, who effectively ruled the Empire. Most of these women were of slave origin, which was often the case in general for consorts of Ottoman sultans.