Why is Xue's tomb in Jiaxiang?

I don't know how the predecessors called this tomb Xue's tomb, which remains to be verified.

Xue Tomb is located in the northeast of Jiaxiang County, Jining City, Shandong Province, north of Pingshan Pass at the junction of Mengshan and Hengshan Mountain. There is no grave in the cemetery, only a stone workshop is left, standing in the east. The stone workshop is made of three whole stones, with square pillars on both sides, and a stone lion carved at the top of each pillar. On the front of the square, the inscription "Rebuilding the Tomb of Xue, a famous official in the Tang Dynasty" is engraved, and on the back, "Jiaxiang County, Jining Prefecture, Yanzhou, Shandong Province, visited two academies with plain words, namely, Wang Huaide, classical historians Liu and Peng directed Qu and Zhang, in the thirty-fifth year of Wanli in Ming Dynasty (1607), and in the second year, it was not summer, but June. According to the local people, there is a tombstone exposed at the west of Shifang 10 meter, and then buried.