Qin dynasty
Note: King Zhaoxiang of Qin (秦昭襄王) had already been ruling Qin for 51 years when Qin annihilated the Zhou dynasty; however the other six warring states were still independent regimes. Some Chinese historiographers thus used the next year (the 52nd year of King Zhaoxiang of Qin) as the official succession from the Zhou dynasty.
Qin Zongquan
Qin Zongquan (; died April 1, 889) was a warlord of the Chinese dynasty Tang Dynasty and later a claimant to the imperial throne, in competition with Emperor Xizong of Tang and, later, Emperor Xizong's brother Emperor Zhaozong, with his capital at Cai Prefecture (蔡州, in modern Zhumadian, Henan). At Qin's prime, he controlled most of modern Henan and parts of modern Hubei, Anhui, and Jiangsu, but he was eventually repeatedly defeated by the Tang general Zhu Quanzhong. His subordinates turned against him and delivered him to the Tang capital Chang'an, where he was executed.