King Zhaoxiang of Qin
Reigning over 55 years, he was one of the longest-serving rulers during the Eastern Zhou Dynasty. Although making numerous policy mistakes during his later years, his aggressive territorial expansions were pivotal in consolidating the state of Qin as the dominant military powerhouse in the late Warring States period. It was the strategic dominance established during his reign that paved the way to Qin's eventual successful unification of China under his great-grandson, Ying Zheng.
King Youmiu
The younger son of King Daoxiang of Zhao, Zhao Qian was nevertheless able to succeed before his elder brother Zhao Jia due to his mother Chang Hou's intervention. He inherited a country that was in danger of being conquered by the Qin state, as it had been since a defeat at the Battle of Changping in 260 BCE.