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In page Ayşe Sultan (Haseki of Murad IV):

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As per custom, she was brought to the harem via the Ottoman slave trade. She most likely appeared in the Ottoman harem at around 1627 and soon became Sultan Murad IV's favorite concubine.[citation needed] Later on, she became his Haseki Sultan. She certainly bore him children, but it is not known how many and which of Murad IV's children were born by her, although, as reported by a European ambassador, Murad IV had twelve children by his favorite consort (and that may refer to her, but the veracity of this information is not verified).[citation needed]