If the girl is a member of the Song clan and the daughter of Princess Yongning, then she should be the future Empress Xiaozhang of the Song dynasty. The historical Empress Xiaozhang was selected as an empress by Song Taizu (Zhao Kuangyin) when she was 16 mostly due to her illustrious lineage, being directly descended from two previous emperors from two previous dynasties. She is also remembered as one of the youngest women ever to have been created empress. Most empresses to Chinese emperors were either their original main wife from before they became emperor or a royal consort elevated to the position after intense competition in the palace. Not so for Empress Xiaozhang due to her being legitimacy incarnate.
