Осман II
Kösem lived in the Ottoman Empire as a courtier during the reign of six sultans: Ahmed I, Mustafa I, Osman II, Murad IV, Ibrahim, and Mehmed IV. After her death, she was known by the names ""Valide-i Muazzama" (magnificent mother), "Vālide-i Maḳtūle" (murdered mother), and "Vālide-i Şehīde"" (martyred mother).