《北史·本记·卷二》
冬十一月，封氐王杨玄为假征南大将军、都督、梁州刺史、南秦王。
冬十一月，以氐王杨玄为假征南大将军、都督、梁州刺史、南秦王。
In the eleventh month of winter, Yang Xuan, King of the Di, was enfeoffed as Acting Grand General of the South, Director, Governor of Liangzhou, and King of the Southern Qin.