King Xiaocheng of Zhao: The Key Monarch Behind Zhao's Turn from Prosperity to Decline during the Warring States Period

Brief Introduction

King Xiaocheng of Zhao (? – 245 BCE), named Zhao Dan, was the fourth monarch of the State of Zhao during the Warring States Period. He was the son of King Wuling of Zhao, who implemented the "Hu Clothing and Cavalry Archery" reform. King Xiaocheng ascended the throne in 266 BCE and reigned for twenty-one years. His rule marked a critical turning point in Zhao's history, witnessing the state's transition from a military powerhouse to decline, and serving as a key variable in the Qin state's process of unifying the six states.

Core Knowledge Points

1. Decision-maker of the Battle of Changping: In 260 BCE, the most famous event of King Xiaocheng's reign was appointing Zhao Kuo to replace Lian Po. During the Battle of Changping, he fell for Qin's stratagem and replaced the experienced veteran Lian Po with Zhao Kuo, known for "Armchair Strategy" (paper talk). This led to the burial alive of 400,000 Zhao prisoners, severely damaging the state's strength and depleting its elite forces.
2. Defense of Handan: After the Battle of Changping, Qin troops besieged Handan. In the later part of his reign, King Xiaocheng recalled Lian Po and relied on reinforcements from Lord of Xinling of Wei and Lord Chunshen of Chu. They successfully relieved the siege, extending Zhao's lifespan and demonstrating his ability to handle crises.
3. Fluctuations in Personnel Usage: He early relied on Lin Xiangru and Lian Po, misused Zhao Kuo in the middle of his reign, and in his later years honored Le Yi, a famous general from Yan. His successes and failures in employing talent directly influenced Zhao's survival.

Connection to the "Records of the Grand Historian"

In Sima Qian's Records of the Grand Historian (Shiji), the deeds of King Xiaocheng of Zhao are mainly scattered across the following chapters:
* "Biography of Lian Po and Lin Xiangru": This chapter details King Xiaocheng's early reign, including Lin Xiangru's diplomatic victories such as "Returning the Jade Intact to Zhao" and the "Meeting at Mianchi," as well as the later process of Lian Po being sidelined and Zhao Kuo replacing him as general. It portrays the suspicion and credulity in his character.
* "Biography of Zhao She": Through the story of Zhao She's son, Zhao Kuo, it indirectly reflects King Xiaocheng's errors in personnel usage. It left behind the idiom "Armchair Strategy" (Paper Talk). Sima Qian adopted a critical attitude toward this, emphasizing the importance of a monarch's ability to recognize talent.
* "Biography of Le Yi": This records King Xiaocheng's honor shown to Le Yi in his later years, attempting to revive Zhao's military strength, but it was too late.

Historical Evaluation

King Xiaocheng of Zhao was a monarch of complexity. At the beginning of his reign, benefiting from the assistance of Lin Xiangru and Lian Po, Zhao's prestige shook the feudal lords. However, the disastrous defeat at the Battle of Changping exposed his shortcomings in judging and employing talent. Although he demonstrated the ability to recover the situation during the Battle of Handan, Zhao's vitality was already wounded, ultimately leading to the state's destruction by Qin in 222 BCE. In the narrative of the Records of the Grand Historian, King Xiaocheng of Zhao is not only a key figure in the late Warring States period but also a true portrayal of the historical law that "Those who gain talent prosper; those who lose talent perish," providing profound political lessons for posterity.

Keywords: King Xiaocheng of Zhao, Records of the Grand Historian, Battle of Changping, Zhao Kuo, Lian Po, Warring States History