She married Mehmed in 1449, when he was still a prince and the governor of Manisa. Just before Sultan Murad II's death,[1][2] she gave birth to her only son, Şehzade Mustafa, who was to be his father's favourite.[3][2] According to Turkish tradition, all princes were expected to work as provincial governors as a part of their training. Mustafa was sent to govern Konya and later Kayseri, and Gülşah accompanied him.[4][5]