In 9 BC, still heirless, Emperor Cheng appeared to come to the resolution of making either his younger brother Prince Liu Xing of Zhongshan (中山王劉興) or his nephew Prince Liu Xin of Dingtao (定陶王劉欣, Prince Kang's son) his heir. Emperor Cheng became convinced that Prince Xin was more capable, and at the same time, Prince Xin's grandmother Consort Fu was endearing herself to the Zhaos and Wang Gen with lavish gifts, and so the Zhaos and Wang Gen both praised Prince Xin as well. Emperor Cheng made Prince Xin crown prince in 8 BC.