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.
King Xiaocheng of Zhao
King Xiaocheng of Zhao (; reigned 265 – died 245 BCE) was a king of the State of Zhao during the Warring States period of ancient Chinese. His reign saw the decline of Zhao military power owing to the catastrophic defeat by Qin at the Battle of Changping.