Little is known about Lady Xu's background other than that she was from Tai Prefecture (台州, in modern
Taizhou,
Zhejiang) and that she was possibly born in 903, during the reign of
Emperor Zhaozong of Tang. It is not known when she became Qian Chuanguan's concubine, but it is known that she was well-versed in music and therefore was put in charge of music in his palace. When another concubine of his, Lady Fu, gave birth to his son
Qian Hongzun — who would later become the designated heir until his untimely death in 940 at age 15 — in 925, Lady Fu became very honored in the palace and was created the Lady of Lu. A
Buddhist nun named Qiyun (契雲), who was in charge of offering incense in the palace and who was considered a good judge of character, however, stated to Lady Xu, "Lady Fu can never match you. You, lady, should take care of yourself." She subsequently gave birth to Qian Chuanguan's sixth son,
Qian Hongzuo, in 928. == During and after Qian Yuanguan's reign ==