was the highest-ranking woman in Ottoman history. In the first half of the 17th century, six sultans, several of whom were children, took the throne. As a result, some
valide sultans ruled both during their sons' periods in power, and during the interregnums. Their prominence was not accepted by everyone. Despite their direct connection to the sultans, the valide sultans often faced opposition from the viziers, as well as from public opinion. Where their male predecessors had won favour with the public through military conquest and charisma, female leaders had to rely on imperial ceremonies and the construction of monuments and public works. Such public works, known as
hayrat or works of piety, were often constructed extravagantly in the name of the sultana, as had been the tradition for imperial Islamic women. Weddings were a common cause for celebration and an opportunity for imperial princesses to display their wealth and power while also promoting charity. As
Fatma Sultan, daughter of
Murad III, was about to be married to a prominent admiral, she gave newly minted coins to all the onlookers, some making off with a whole skirt-full of wealth. The death of a sultan's consort or mother could inspire even greater extravagance. For example, the death of
Hürrem Sultan brought crowds of mourners onto the streets, including the sultan himself, who was normally expected to isolate himself in the palace during the funeral of a family member. On this occasion, coins and food were distributed to the funeral attendees as a tribute to the sultana's generous and caring nature. The most enduring accomplishments of many of the wives and mothers of the sultans were their large public works projects, usually in the form of mosques, schools and monuments. The construction and maintenance of these projects provided crucial economic liquidity during a period otherwise marked by economic stagnation and corruption while also leaving powerful and long-lasting symbols of the sultanate's power and benevolence. While the creation of public works was always an obligation of the sultanate, sultanas such as Süleiman's mother and consort undertook projects that were larger and more lavish than any woman before them - and most men as well.
Kösem Sultan Kösem Sultan (1589–1651), born in
Tinos, was one of the most powerful women and the highest ranking woman in the
History of the Ottoman Empire. She was the most trusted advisor of Sultan
Ahmed I and his
Haseki Sultan. She was active in the Ottoman administration as the Sultan's consort. Historians credit her with persuading him to spare the life of his younger half-brother (who eventually became
Mustafa I), thus putting an end to the centuries-old practice of fratricide in the
Ottoman Empire. After
Ahmed died in 1617, she was instrumental in Mustafa's enthronement and, after his second deposition in 1623, she assumed absolute power and dominant as a
Valide Sultan and
Naib-I Saltanat (
regent) three times, during minority of her son
Murad IV from 1623 to 1632, during the unstable reign of
Ibrahim () and during the early reign of her grandson
Mehmed IV from 1648 until her
assassination on 2 September 1651. Kösem wielded unparalleled political power and influenced the empire's foreign and domestic policies.
Turhan Sultan Turhan Sultan governed the Ottoman Empire as regent during the minority of her son
Mehmed IV from 1651 to 1656, having won a struggle with his grandmother (Kösem Sultan) for the role. One of the most powerful women of Ottoman Empire,she also contributed to the empire's defense, spending large amounts of money on the reconstruction and fortification of key military strongholds. When her son
Mehmed IV returned from a successful military campaign, Turhan arranged a royal procession to retrace his warpath, and share in the glory of his victory. She was responsible for the construction of the
Yeni Mosque (Yeni Cami) at
Eminönü. == Opposition ==