The tomb of Princess Yang Ching-hui and Imperial Son-in-law Wei Yuan-chao was discovered in recent years on the plains of Shao-ling in Ch'ang-an County. Although the tomb had already long been broken into and plundered by grave robbers, the tomb stele remained intact. The calligraphic style of the tomb inscription for Yang Ching-hui is particularly impressive, making the stele an important source for the study of not only calligraphy, but also history. Yang and Wei belonged to two of the most prestigious families of the time. In the dynasties before the Sui starting with the Han (206 B.C.-220 A.D.), these two families produced numerous high-ranking officials, as seen in historical records. In the late Northern Chou (557-589), Yang Chien was able to assume power by removing the imperial bronzes, thereby establishing the political authority of the Sui dynasty (589-618), in which he ascended the throne as emperor. His grand-daughter, Yang Ching-hui, was later enfoeffed as Princess of Feng-ning. The family to which Wei Yuan-chao belonged was intimately connected with that of Yang's, for Yuan-chao's grandfather, Hsiao-k'uan, was a meritorious military official who had assisted Yang Chien by removing any resistance to Yang's replacement of the Northern Chou dynasty. This action laid the foundation for the high position which the Wei family enjoyed in the Sui and following T'ang dynasty (618-907). The marriage between Ching-hui and Yuan-chao thus bound the two families even closer to form an extricable link between the two. Although these two individuals are not particularly well-known in historical records, the content of their tomb stele provides a rich source of information for the study of, among other subjects, the marriage between high-ranking families of the period and the history of Ch'ang-an.