Davis 1970, pp. 227–228: "Kosem was said to have been the daughter of a Greek priest of one of the Aegean islands, probably captured during one of the Ottoman-Venetian maritime campaigns. Her name was Anastasia but was changed after her conversion, no doubt on her admission to the palace, to Mâh-Peyker (Moon-Shaped), and later by Sultan Ahmet to Kosem" Davis, Fanny (1970). The Palace of Topkapi in Istanbul. Scribner. OCLC636864790.
Davis 1970, pp. 227–228: "Kosem was said to have been the daughter of a Greek priest of one of the Aegean islands, probably captured during one of the Ottoman-Venetian maritime campaigns. Her name was Anastasia but was changed after her conversion, no doubt on her admission to the palace, to Mâh-Peyker (Moon-Shaped), and later by Sultan Ahmet to Kosem" Davis, Fanny (1970). The Palace of Topkapi in Istanbul. Scribner. OCLC636864790.