Background
As a modern political historian looking back at the Dantu deathbed scene in the fifth year of Jian'an, the significance of this act of regency lay not in the formal "father dies, son inherits" framework but in what it resolved: a fundamental open question for the Jiangdong regime — could the territory Sun Ce had carved out in five years of campaigning survive his sudden death? At that moment, the Sun clan had ruled Jiangdong for fewer than six years. The local aristocracy had only just been subdued, remnants of Xu Gong's household were a constant threat of resurgence, Liu Biao was watching from the west, and Cao Cao in the north had just crushed Yuan Shao and was about to march south. Any misstep in the succession could have instantly brought the entire regime down. That Sun Ce was able, in his final hours, to make a clear and precise arrangement was the original precondition for Eastern Wu's survival across the following decades [c:16745].
Key Figures
The two most critical figures were Sun Ce and Sun Quan. Sun Ce was only twenty-six years old at his death. In his last moments he saw clearly the difference in capabilities between himself and his younger brother: "In deciding battles between two armies, I surpass you; in elevating the worthy and employing the capable to hold Jiangdong, you surpass me" [c:16745]. This was not a modest demurral but a precise mutual assessment — Sun Ce recognized that what Jiangdong needed next was not another "Little Conqueror" but a coordinator who could integrate talent and stabilize the overall situation. Zhang Zhao, as the representative of the inner court, and Zhou Yu, as the representative of outer military authority, formed the left and right wings supporting Sun Quan. This structure — the lord at the center with civil and military administration managed separately — was the most important legacy Sun Ce left his brother.
Core Issues
Three deeper issues were at stake in this act of regency. The first is the question of legitimacy: Sun Ce personally placed the seal into Sun Quan's hands and did so before the eyes of veteran officials such as Zhang Zhao, giving the succession the weight of ceremonial confirmation; even dissatisfied local aristocrats had no procedural grounds to contest it. The second is the question of strategic orientation: Sun Ce explicitly stated that the core strategy for Jiangdong was not to push north and contend for the realm but to "hold Jiangdong" — a defensive posture using the Yangtze as a shield and talent as a backbone. This framing directly shaped Sun Quan's strategic choice at the eve of Chibi: to align with Liu Bei and resist Cao Cao rather than to launch a proactive northern expedition. The third is the structure of the regency council: entrusting internal governance to Zhang Zhao and military affairs to Zhou Yu, with Lady Wu Guotai's maternal authority adding an additional layer of assurance [c:16746] — this system of multiple checks was key to the Sun clan's avoidance of the kind of usurpation by a dominant minister that afflicted Caowei.
Political Consequences
The direct consequence of Sun Ce's deathbed regency was that Sun Quan completed the transfer of power smoothly under the guidance of Zhang Zhao and Zhou Yu, without any major upheaval in Jiangdong. Eight years later, on the eve of the Battle of Chibi, when Sun Quan wavered in the face of Cao Cao's massive army, it was Lady Wu Guotai who recalled the instruction "for internal affairs, consult Zhang Zhao; for external affairs, consult Zhou Yu" and snapped him out of his uncertainty [c:16746] — the fact that this formulation had been internalized as a shared political understanding by the entire Sun family proves that Sun Ce's regency arrangement had taken root. Viewed over the longer arc, Sun Quan held Jiangdong for more than forty years, established the Eastern Wu state, and maintained it until 280 — throughout, he followed the orientation Sun Ce had laid down on his deathbed: "elevate the worthy, employ the capable, and hold fast to Jiangdong."
Counterfactual Analysis
Suppose Sun Ce had not made his regency arrangement in time and died of his wounds that night — in that scenario, Zhang Zhao and Zhou Yu would have faced a legitimacy crisis in supporting any successor without formal authorization; Sun Ce's third brother Sun Yi, whose temperament resembled Sun Ce's but was even more impetuous, might have been backed by a portion of the generals, splitting Jiangdong into internal factions. When Cao Cao drove south there would have been no need for a Battle of Chibi — he could have swallowed Jiangdong in a single stroke. Alternatively, suppose Sun Ce had given the seal to Sun Yi rather than Sun Quan — Jiangdong might have appeared more ferocious in the short term, but would very likely have collapsed from internal conflict or reckless adventurism before Chibi ever took place. In this sense, what Sun Ce chose in his final moments was not "the son most like himself" but "the brother most capable of compensating for his own weaknesses" — this political wisdom grounded in functional complementarity is the key reason this act of regency has been repeatedly studied by posterity. Among all the deathbed regency events in the San Guo era, Sun Ce's transfer of authority to Sun Quan stands as one of the rare cases that succeeded completely and left almost no harmful side effects.