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 Zhaoxiang of Qin
The authority of the Zhou court had been declining since the very beginning of the Eastern Zhou Dynasty. When King Ping of Zhou abandoned the old capital of Haojing and relocated east to Luoyi, the new capital's crown land (王畿) was significantly smaller and less developed compared to the old capital. The royal Zhou court, which had been humiliated by Haojing's sacking, became increasingly reliant on the support of the vassal states. King Ping's son, King Huan, later had a falling out with one of the strongest vassals, Duke Zhuang of Zheng. The young King Huan decided to assert his authority as the lord paramount and personally led an expedition in 707 BC to punish on the state of Zheng, but was badly defeated in the Battle of Xuge. King Huan himself was wounded in the shoulder by an arrow, and was forced to back down and negotiate peace with Duke Zhuang. This destroyed any remaining prestige and authority the Eastern Zhou royal court had over its vassals, and confirmed the "de facto" independence of the feudal states. The Zhou court was so impoverished after that defeat that, when King Huan died in 697 BC, it took the court seven years to get enough funding for a fitting royal funeral. During the reign of King Xiang of Zhou, his half-brother Prince Dai (王子帶) twice attempted to usurp the throne in 649 BC and 635 BC, both times by conspiring with Quanrong to lay siege to the capital. King Xiang required military assistance by the vassal states to reinstate himself on both occasions, and was forced to increase their fiefs each time as commendations. This further weakened the image of the Eastern Zhou court in the eyes of the vassal states, and progressively relegated it to the status of a neglected figurehead.