Anastasia a young Greek woman in Ahmed I's harem takes on the name 'Kosem' (leader, pioneer). In a world of men, she rules of the Ottoman Empire through her sons and grandson.Anastasia a young Greek woman in Ahmed I's harem takes on the name 'Kosem' (leader, pioneer). In a world of men, she rules of the Ottoman Empire through her sons and grandson.Anastasia a young Greek woman in Ahmed I's harem takes on the name 'Kosem' (leader, pioneer). In a world of men, she rules of the Ottoman Empire through her sons and grandson.