In the Northern and Southern Dynasties when the State of Chen (A.D. 557-589) was facing its demise, Xu Deyan, husband of the princess, broke a bronze mirror into halves.

• 南朝陈国(公元557-589)将要灭亡的时候，驸马徐德言把一面铜镜破开，跟妻子各留下一半。