《明史·列传·卷二百》
于是朝廷便把筠连州降为县，让其隶属于叙州，将九姓长官司隶属于永宁安抚司。
遂降筠连州为县，属叙州，以九姓长官司隶永宁安抚司。
So the court demoted Yunlian Prefecture to a county, which was attached to Xuzhou, and the Chief Prime Minister of the Nine Surnames was attached to Yongning Anfu Division.