秦孝公 / Duke Xiao of Qin
《资治通鉴·周纪》11丨 世界风起云涌（2） moves Qin Xiao Gong’s page back to his accession in 362 BCE. The episode says he is twenty-one when 秦献公 dies and he inherits a 秦国 pressed by 魏国 from Hexi/Shangjun, by 楚国 from Hanzhong-Ba-Qianzhong, and by the eastern states’ habit of treating Qin as an excluded peripheral power. That makes “布德修政” and 《史记》’s expanded program of repairing government, aiding the vulnerable, recruiting warriors, and clarifying merit rewards the prelude to later 商鞅变法.
《资治通鉴·周纪》12丨 公孙鞅求职路上的拉关系 走后门 makes that prelude explicit through his 361 BCE recruitment edict. Qin Xiao Gong invokes 秦穆公’s older hegemony, names Qin’s later disorder and lost Hexi position as shame, and offers office plus land to anyone who can strengthen Qin. The episode’s personnel point is that even an open summons works through access: 公孙鞅 / 商鞅 reaches him through 景监 before winning him with practical rich-state, strong-army proposals.
秦孝公 / Duke Xiao of Qin appears in 《资治通鉴·周纪》13丨 公孙鞅苛刻变法惹杀身（1） as the 秦国 ruler who gives 公孙鞅 / 商鞅 decisive trust before the first major reform push. The episode presents his role as political authorization: without the ruler’s backing, Shang Yang’s attack on noble privilege, household structure, and inherited status could not become state law.
The source also shows Qin Xiao Gong choosing between incompatible reform theories. 甘龙 warns that governing through old custom avoids popular alarm, while Shang Yang argues for reform without popular deliberation in pursuit of state strength. Qin Xiao Gong decides for Shang Yang and appoints him 左庶长, making the appointment a threshold in 商鞅变法.
《资治通鉴·周纪》15丨酒不醇引发的世界大战 adds Qin Xiao Gong as the Qin-side ruler in the Duping meeting with 魏惠王. The episode says the meeting’s content is unknown but infers failure from the following year’s Qin-Wei war: Qin defeats 魏国 at Yuanli and occupies 少梁, with the host linking Qin’s battlefield intensity to the 军功爵制.
《资治通鉴·周纪》13丨 公孙鞅苛刻变法惹杀身（2） shows the political cost of that authorization reaching his own household. When 太子嬴驷 breaks the new law, the prince cannot be punished directly, so 公孙鞅 / 商鞅 punishes the prince’s tutors. For Qin Xiao Gong, reform backing now means tolerating a high-status enforcement signal that protects legal credibility while injuring court insiders.
《资治通鉴·周纪》17丨韩昭侯和申不害 keeps Qin Xiao Gong as the ruling frame for Shang Yang’s second reform round. The episode focuses on 公孙鞅 / 商鞅, but the move to 咸阳, 分居令, and administrative standardization all continue the state project Qin Xiao Gong enabled.
《资治通鉴·周纪》18丨中国历史上第一例人头税 gives Qin Xiao Gong a formal-status turn. The source reads “王致伯于秦” as Zhou recognition that makes him senior among the lords, while noting that he sends 公子少官 with troops to 逢泽 rather than attending the ceremony himself.
《资治通鉴·周纪》22丨公孙鞅诈魏公子卬 gives Qin Xiao Gong the decision point for the 340 BCE attack on Wei. 公孙鞅 / 商鞅 presents 魏国 as both Qin’s strategic danger and current opportunity after recent defeats, and Qin Xiao Gong authorizes the campaign that ends with 公子卬 / 公子昂 captured.
《资治通鉴·周纪》23丨魏惠王 悔不用公叔之言 closes his reign. The episode says Qin Xiao Gong dies in 338 BCE after twenty-four years, with Qin strengthened, Hexi recovered, and Wei forced to yield. His death also removes Shang Yang’s protection, making Qin Xiao Gong the necessary shield behind 商鞅变法 as well as the ruler who benefits from them.
《资治通鉴·周纪》24丨商鞅曰：我咋裂了 makes that shield function explicit. The episode says Shang Yang’s career gives Qin Xiao Gong more than the restoration of 秦穆公’s old greatness that he wanted, but also leaves Shang Yang dependent on Xiao Gong’s protection. Once that protection disappears, reform success becomes part of Shang Yang’s 权力退场困境.
《资治通鉴·周纪》25丨赵良对商鞅说：你不配 sharpens the same point through 赵良’s phrase “危若朝露.” Qin Xiao Gong is the sun-not-yet-risen condition that lets 公孙鞅 / 商鞅’s danger remain suspended. The warning implies that ruler backing can suppress accumulated resentment without converting it into stable social support.
Connections
- 秦国 - polity he rules in the episode.
- 秦献公, 《史记》, 秦国外交排斥, and 秦国东进压力 - accession, source supplement, exclusion, and pressure context in Zhouji 11 part 2.
- 秦穆公, 景监, and 私人进身通道 - Zhouji 12 restoration rhetoric and talent-access channel.
- 公孙鞅 / 商鞅 - reformer he empowers.
- 甘龙 - conservative opponent whose argument Qin Xiao Gong rejects.
- 魏惠王, 魏国, 少梁, Qin Eastward Pressure / 秦国东进压力, and 军功爵制 - Zhouji 15 Duping meeting, Yuanli victory, and Shaoliang occupation branch.
- 太子嬴驷, 公子虔, and 公孙贾 - crown prince and punished tutor figures whose case tests reform authority.
- Shang Yang Reforms / 商鞅变法, Reform Without Popular Deliberation / 不与民虑始, Military Merit Rank System / 军功爵制, and 徙木立信 / Moving the Log to Build Trust - institutional branch enabled by his support.
- High-Status Law-Enforcement Signal / 高位执法信号 - prince-lawbreaking enforcement signal under his rule.
- 咸阳, Household Separation Law / 分居令, and Qin Administrative Standardization / 秦国行政标准化 - Zhouji 17 second-reform branch under his ruling frame.
- 人头税, Zhou Hegemon Recognition / 周室霸权承认, 公子少官, and 逢泽 - Zhouji 18 fiscal and hegemon-recognition branch.
- Qin Eastward Pressure / 秦国东进压力, 耕战逻辑, 和谈诱捕, 公子卬 / 公子昂, 嬴驷, 公子虔, and Warring States Reform Backlash / 战国变法反噬 - Zhouji 22-23 attack-Wei decision, death, succession, and backlash branch.
- 秦穆公, 百里奚, 民心型政治安全, and 权力退场困境 - Zhouji 24-25 restoration ideal, social-support contrast, and ruler-protection branch.