Li Cunxin, a researcher with the Chinese Society of Social Sciences, introduces the discoveries from the No. 5 tomb of the Marquis of Haihun site in Nanchang, east China's Jiangxi Province, Jan. 26, 2018. A metal seal reading "Liu Chongguo" was unearthed from the No. 5 tomb at the Marquis of Haihun site, China's most complete Western Han Dynasty(206 B.C.- 25 A.D.) cemetery, and the identity of No. 5 tomb owner has been confirmed to be the eldest son of the controversial Chinese emperor Liu He. (Xinhua/Li He)