In March 2013, two brick chamber tombs were discovered in the real estate construction project of Caozhuang Zhongxinghai Zijun, Situ Village, Xihu Town, Yangzhou City. The Yangzhou Institute of Cultural Relics and Archeology applied for an archaeological excavation license and carried out rescue work. Archaeological excavations. In mid-April, a Yihe epitaph was unearthed from Tomb No. 1 of the Sui and Tang Dynasty Tombs in Caozhuang, Yangzhou. The epitaph contained the words "Epitaph of Emperor Yang of Suigu". The archaeological team completed an exploration area of ??109,000 square meters and discovered 136 signs of tombs, 2 rammed earth sites, 2 ditches, 1 brick foundation, 5 wells, and 29 pits (ponds).
Tomb No. 2 is a drum-shaped brick chamber tomb, which consists of five parts: the main tomb chamber, the east and west ear chambers, the corridor, and the tomb passage. The tomb is 12.64 meters long, 5.9 meters wide, and 1.6 meters high. There are three small niches on the east, west and north walls of the tomb chamber; there is a small ear chamber on each side of the corridor. More than 200 pieces (sets) of jade, bronze, iron, ceramic, wood and lacquerware were unearthed. Among them, the jades include a white jade jade with a shiny texture; the bronzes include chimes, chimes, copper lamps, copper beans, etc. There are a set of 16 chimes and 20 chimes, which are the only actual chimes and chimes from the Sui and Tang Dynasties unearthed in China so far. It fills a gap in the history of Chinese music archaeology; pottery includes pots, furnaces, bowls, lamps, tables, mills, etc.; pottery figurines include cows, horses, pigs, sheep, camels, double-headed snake-body figurines, civil servant figurines, and shield-holding figurines. Warrior figurines, some of the pottery are painted; porcelain includes a celadon-glazed Piyong inkstone with exquisite shape; a set of female crown ornaments with exquisite craftsmanship and rare in China. There are some human skeletons preserved in the tomb, which were identified by physical anthropology experts from Nanjing University as the remains of a woman over 56 years old and about 1.5 meters tall. Although there is no written information about Tomb No. 2, based on the shape of the tomb, the high-grade funerary objects unearthed in the tomb, the identification of human bone remains, and the literature records, it is determined that the owner of the tomb is Empress Xiao, Emperor Yang of the Sui Dynasty.