Ханьшу
The "Book of Han" tells a different story of how Lady Bo came to become the emperor's concubine. It states that Liu Bang discovered Lady Bo working as a seamstress in Dai and took her as his concubine there. Despite this difference in Lady Bo's origin, the "Book of Han" and other historical texts converge with Lady Bo and her son, Liu Heng, in the Principality of Dai.