The Qing and Xu Group between the Jin Dynasty and the Song Dynasty

Between the Jin Dynasty and the Song Dynasty,there was an active regional political and military group in Qingzhou and Xuzhou,which was called the Qing and Xu Group.It was predominantly composed of Hebei family of many branches,which moved with Murong nobles and settled in Qingzhou and Xuzhou after Latter Yan's losing Hebei.Murong established the Southern Yan regime with Hebei family of many branches as its principal part.Liu Yu conquered the Jiangzuo regime.The existance and alteration of the Qing and Xu Group had great influence on the politics of the Southern Yan and the Late Jin Dynasty.A research of the history of the Qing and Xu Group can help us have a deeper understanding of the potitical situation between the Jin Dynasty and the Song Dynasry.