In his late years, Emperor Gaozu started favouring one of his younger consorts, Concubine Qi, who bore him a son Liu Ruyi, who was instated as Prince of Zhao in 198 BC, displacing Lü Zhi's son-in-law Zhang Ao (張敖; Princess Yuan of Lu's husband).
She was the daughter of Princess Yuan of Lu (the only daughter of Emperor Gao (Liu Bang) and his wife Empress Lü) and her husband Zhang Ao (張敖, son of Zhang Er), the Prince of Zhao and later Marquess of Xuanping.
In 199 BC, however, because of the rebellion of several other kings, Zhang Ao, King of Zhao, son of Zhang Er, was demoted to marquess and this kingdom became extinct.
(Princess Yuan of Lu's husband and Zhang Yan's father, Zhang Ao (張敖), had, during Emperor Gao's reign, been the Prince of Zhao, but was removed as part of the policy against non-Liu princes, so Grand Empress Dowager Lü might have felt that making Zhang Yan a prince would be considered to be more justified; when Zhang Ao died in 182 BC, he was posthumously honored as a prince.
Zhang Fei | Zhang Yimou | Zhang Wentian | Zhang Zhidong | Zhang Ruimin | Zhang Yan (Han Dynasty) | Zhang Yan | Zhang Xun | Zhang Yue (Tang Dynasty) | Zhang Yue | Zhang Dejiang | Zhang Anshi | Liu Zhang | Jianyi Zhang | Zhang Zuoxiang | Zhang Zuolin | Zhang Zizhong | Zhang Zhongjing | Zhang Zhizhong | Zhang Zhijun | Zhang Zhen Huan | Zhang Yuan | Zhang Yu | Zhang Yizhi | Zhang Yiyi | Zhang Yi (strategist) | Zhang Yaodong | Zhang Yanmei | Zhang Xueliang's former residence in Wufeng, Hsinchu | Zhang Xin |