Qin Zongquan
Zhao Deyin () (died 892), formally the Prince of Huai'an (), was a warlord late in the Chinese dynasty Tang Dynasty, who initially served as a general under the pretender emperor Qin Zongquan. When Qin neared defeat, Zhao declared loyalty to Tang instead, and was able to retain control of Zhongyi Circuit (忠義, headquartered in modern Xiangyang, Hubei), which, after his death, was passed to his son Zhao Kuangning.