King Wei of Chu (r. 339-329 BCE) bestowed the priceless jade upon Prime Minister Zhao Yang (昭陽) in gratitude for his defeat of the Yue kingdom in 333 BCE. On one occasion, Zhao Yang displayed the jade for his guests at a banquet when someone started a commotion, and in the midst of the confusion, the jade-disk disappeared. The School of Diplomacy political strategist Zhang Yi (fl. 328-309 BCE) was accused as the thief, and Zhao Yang had him questioned under torture before he was released. After this incident, the whereabouts of the jade was lost until it resurfaced at Zhao.