唐昭宗
In 904, Zhu Quanzhong, who then had Emperor Zhaozong of Tang under his control, forced the Tang emperor to move the capital from Chang'an to Luoyang, which was more firmly under his control. Once Emperor Zhaozong arrived in Luoyang, all of the palace personnel were commissioned by Zhu, so that Zhu could tightly control the palace affairs. Zhao Yinheng became one of the deputy directors of palace affairs (宣徽副使, "Xuanhui Fushi"), under the director Wang Yin (). While serving in that office, he participated in plotting, at Zhu's order, the assassination of Emperor Zhaozong in late 904, along with Jiang Xuanhui () and Zhang Tingfan (). (Emperor Zhaozong was succeeded by his young son Emperor Ai.)