八旗制度
This banner was commanded by Prince Zheng, the lineage of Šurhaci and his son Jirgalang. By the blood of its commanders the Bordered Blue Banner was the remotest banner out of the Eight Banners; as all the other banners were led by descendants of Nurhaci. Due to its genealogical status, this banner was usually seen as the last banner of the Eight Banners although there were no concrete laws to officially acknowledge this status.