# Zheng (state)

Zheng (/dʒɛŋ/; Chinese: 鄭; Old Chinese: *[d]reng-s) was a vassal state in China during the Zhou dynasty (1046–221 BCE) located in the centre of ancient China in modern-day Henan Province on the North China Plain about 75 miles (121 km) east of the royal capital at Luoyang. It was the most powerful of the vassal states at the beginning of the Eastern Zhou (771–701 BCE), and was the first state to clearly establish a code of law in its late period of 543 BCE. Its ruling house had the ancestral name Ji (姬), making them a branch of the Zhou royal house, who held the rank of Bo (伯), a kinship term meaning "elder".

## Foundation

Zheng was founded in 806 BC when King Xuan of Zhou, the penultimate king of the Western Zhou, made his younger brother Prince You (王子友) Duke of Zheng and granted him lands within the royal domain in the eponymous Zheng in modern-day Hua County, Shaanxi on the Wei River east of Xi'an. Prince You, known posthumously as Duke Huan of Zheng, established what would be the last bastion of Western Zhou. He went on to serve as Situ under King You of Zhou. When the Quanrong tribes sacked the Zhou capital Haojing in 771 BC, Duke Huan was killed along with his nephew King You of Zhou.
Duke Huan was succeeded by his son Duke Wu (鄭武公). Along with Marquis Wen of Jin, Duke Wu supported King Ping of Zhou against a rival, thereby helping to establish the Eastern Zhou. He re-established the state of Zheng in modern-day Xinzheng (meaning New Zheng), Henan, and annexed the state of Eastern Guo and defeated Kuai. The Zheng rulers served as high ministers of the Zhou kings for several generations.

## Spring and Autumn period
### Early dominance

The state of Zheng was one of the strongest at the beginning of the Spring and Autumn period. Throughout the Spring and Autumn period, Zheng was one of the wealthiest states, relying on its central location for inter-state commerce and having the largest number of merchants of any state. Zheng often used its wealth to bribe itself out of difficult situations.
Duke Zhuang of Zheng (743–701 BC) was arguably a forerunner of the Five Hegemons, though Zheng derived its dominance by dramatically different means compared to those of the later hegemons by defeating an alliance of feudal states led by Zhou itself and wounding King Huan of Zhou. When Duke Zhuang died there was a civil war between his sons and Zheng ceased to be a powerful state.

### Zheng Wen Gong wen Tai Bo

This bamboo manuscript records a conversation about Zheng history between Duke Wen of Zheng (r.  672–628 BCE) and the elderly Tai Bo. Zheng state's beginning under Duke Huan (r.  806–771) is recalled by Tai Bo. Duke Huan's son Duke Wu (r.  770–744) moved Zheng state east. Its neighboring states acknowledged Zheng as a paramount power. Duke Zhuang (r.  743–701) furthered Zheng state's position of dominance.
When Duke Zhuang died his elder son Duke Zhao (r.  701, 697–695) took his place. Yet the powerful Zhai Zhong favored his younger son Duke Li (r.  701–697, 680–673) and deposed Zhao to install him. Li, however, later failed to wrest control from Zhai Zhong and was pushed into exiled. After a few years Duke Zhengzi Ying (r.  694–680), Li's younger brother, became the nominal ruler of Zheng, until he was assassinated. Duke Li then returned to rule.
Zheng Wen Gong was the son of Duke Li. At his father's death, Wen's succession was fraught with difficulties. He tells of the help given him by Tai Bo. It allowed Wen to reside in the traditional shed of mourning for his father, and so begin his 45-year rule [672-628].
Yet Tai Bo criticized Duke Wen for his seeking the ease of domestic pleasure. The Duke's principle consort Lady Mi came from Chu state. At times during the rule of Duke Wen, the affairs of Zheng fell under the influence of this powerful state to the south, Chu.

### Later period

As competition between states intensified, Zheng had no room to expand. Due to its central location, Zheng was hemmed in on all sides by larger states.
During the later stages of the Spring and Autumn period, its territory became of pivotal interest in the rivalry of more powerful states. Zheng was often compelled to switch its diplomatic alliances. It had become a focus of contention between Chu and Qi, then later Chu and Jin. By the 7th century BCE Zheng found itself forced into a minor role.
Notwithstanding, Zheng remained quite strong into the middle and later years of the Spring and Autumn. Under Duke Mu (r. 628–606) Zheng managed to defeat a combined alliance of Jin, Song, Chen and Wei in 607 BCE.
Zheng's prime minister Zichan (543–522) became widely known as a leading statesman among the rival states of the era. Zichan was a grandson of Duke Mu. Zheng was also widely recognized as the first state of China to publish its laws, in bronze in 536 BCE.
Zheng later declined, due to disorders from conflicts among as its feuding clans. In 375 BCE during the following Warring States period Zheng was annexed by Han state.

#### Xingyang

The Zheng family of Xingyang 荥阳郑氏 claim descent from the Zhou dynasty kings through the rulers of the State of Zheng.
The Marquis of Xingyang rank was created for Zheng Xi. The Xingyang Zheng descendants included Zheng Daozhao and Zheng Xi. Zheng Wanjun was a member of the Xingyang Zheng. Other Xingyang Zheng descendants were Zheng Yuzhong (Zheng Qiao) and Zheng Jiong.

## List of rulers

| Title | Given name | Reign |
| Duke Huan of Zheng 鄭桓公 | Yǒu 友 | 806–771 BC |
| Duke Wu of Zheng 鄭武公 | Juétú 掘突 | 770–744 BC |
| Duke Zhuang of Zheng 鄭莊公 | Wùshēng 寤生 | 743–701 BC |
| Duke Zhao of Zheng 鄭昭公 | Hū 忽 | 701 BC |
| Duke Li of Zheng 鄭厲公 | Tú 突 | 700–697 BC |
| Duke Zhao of Zheng (second reign) 鄭昭公 | Hū 忽 | 696–695 BC |
| Zheng-zi Wei 鄭子亹 | Wěi 亹 | 694 BC |
| Zheng-zi Ying 鄭子嬰 | Yīng 嬰 | 693–680 BC |
| Duke Li of Zheng (second reign) 鄭厲公 | Tú 突 | 679–673 BC |
| Duke Wen of Zheng 鄭文公 | Jié 踕 | 672–628 BC |
| Duke Mu of Zheng 鄭穆公 | Lán 蘭 | 627–606 BC |
| Duke Ling of Zheng 鄭靈公 | Yí 夷 | 605 BC |
| Duke Xiang of Zheng 鄭襄公 | Jiān 堅 | 604–587 BC |
| Duke Dao of Zheng 鄭悼公 | Fèi 沸 | 586–585 BC |
| Duke Cheng of Zheng 鄭成公 | Gùn 睔 | 584–581 BC |
| Prince Xu of Zheng 公子繻 | Xū 繻 | 581 BC |
| Duke Xi of Zheng 鄭僖公 | Yùn 惲 | 581 BC |
| Duke Cheng of Zheng (second reign) 鄭成公 | Gùn 睔 | 581–571 BC |
| Duke Xi of Zheng (second reign) 鄭僖公 | Yùn 惲 | 570–566 BC |
| Duke Jian of Zheng 鄭簡公 | Jiā 嘉 | 565–530 BC |
| Duke Ding of Zheng 鄭定公 | Níng 寧 | 529–514 BC |
| Duke Xian of Zheng 鄭獻公 | Dǔn 躉 | 513–501 BC |
| Duke Sheng of Zheng 鄭聲公 | Shèng 勝 | 500–463 BC |
| Duke Ai of Zheng 鄭哀公 | Yì 易 | 462–455 BC |
| Duke Gong of Zheng 鄭共公 | Chǒu 丑 | 455–424 BC |
| Duke You of Zheng 鄭幽公 | Jǐ 已 | 423 BC |
| Duke Xu of Zheng 鄭繻公 | Tái 駘 | 422–396 BC |
| Duke Kang of Zheng 鄭康公 | Yǐ 乙 | 395–375 BC |

### Rulers family tree

Zheng state :
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Seven Mu | Seven Mu | Seven Mu | Seven Mu | Seven Mu | Seven Mu |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Seven Mu | Seven Mu | Seven Mu | Seven Mu | Seven Mu | Seven Mu | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Duke Huan of Zheng 郑桓公 806–771 BC | Duke Huan of Zheng 郑桓公 806–771 BC | Duke Huan of Zheng 郑桓公 806–771 BC | Duke Huan of Zheng 郑桓公 806–771 BC | Duke Huan of Zheng 郑桓公 806–771 BC | Duke Huan of Zheng 郑桓公 806–771 BC |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Duke Wu of Zheng 郑武公 770–744 BC | Duke Wu of Zheng 郑武公 770–744 BC | Duke Wu of Zheng 郑武公 770–744 BC | Duke Wu of Zheng 郑武公 770–744 BC | Duke Wu of Zheng 郑武公 770–744 BC | Duke Wu of Zheng 郑武公 770–744 BC |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Duke Zhuang of Zheng 郑庄公 757–743 BC – 701 BC | Duke Zhuang of Zheng 郑庄公 757–743 BC – 701 BC | Duke Zhuang of Zheng 郑庄公 757–743 BC – 701 BC | Duke Zhuang of Zheng 郑庄公 757–743 BC – 701 BC | Duke Zhuang of Zheng 郑庄公 757–743 BC – 701 BC | Duke Zhuang of Zheng 郑庄公 757–743 BC – 701 BC | Gongshu Duan 共叔段 | Gongshu Duan 共叔段 | Gongshu Duan 共叔段 | Gongshu Duan 共叔段 | Gongshu Duan 共叔段 | Gongshu Duan 共叔段 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Duke Zhao of Zheng 郑昭公 700 696–695 BC | Duke Zhao of Zheng 郑昭公 700 696–695 BC | Duke Zhao of Zheng 郑昭公 700 696–695 BC | Duke Zhao of Zheng 郑昭公 700 696–695 BC | Duke Zhao of Zheng 郑昭公 700 696–695 BC | Duke Zhao of Zheng 郑昭公 700 696–695 BC | Duke Li of Zheng 郑厉公 700–697 679–673 BC | Duke Li of Zheng 郑厉公 700–697 679–673 BC | Duke Li of Zheng 郑厉公 700–697 679–673 BC | Duke Li of Zheng 郑厉公 700–697 679–673 BC | Duke Li of Zheng 郑厉公 700–697 679–673 BC | Duke Li of Zheng 郑厉公 700–697 679–673 BC | Zheng-zi Wei 鄭子亹 694 BC | Zheng-zi Wei 鄭子亹 694 BC | Zheng-zi Wei 鄭子亹 694 BC | Zheng-zi Wei 鄭子亹 694 BC | Zheng-zi Wei 鄭子亹 694 BC | Zheng-zi Wei 鄭子亹 694 BC | Zheng-zi Ying 鄭子嬰 693–680 BC | Zheng-zi Ying 鄭子嬰 693–680 BC | Zheng-zi Ying 鄭子嬰 693–680 BC | Zheng-zi Ying 鄭子嬰 693–680 BC | Zheng-zi Ying 鄭子嬰 693–680 BC | Zheng-zi Ying 鄭子嬰 693–680 BC | 子人 | 子人 | 子人 | 子人 | 子人 | 子人 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Duke Wen of Zheng 郑文公 672–628 BC | Duke Wen of Zheng 郑文公 672–628 BC | Duke Wen of Zheng 郑文公 672–628 BC | Duke Wen of Zheng 郑文公 672–628 BC | Duke Wen of Zheng 郑文公 672–628 BC | Duke Wen of Zheng 郑文公 672–628 BC | 叔詹 | 叔詹 | 叔詹 | 叔詹 | 叔詹 | 叔詹 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 太子华 | 太子华 | 太子华 | 太子华 | 太子华 | 太子华 | Duke Mu of Zheng 郑穆公 627–606BC | Duke Mu of Zheng 郑穆公 627–606BC | Duke Mu of Zheng 郑穆公 627–606BC | Duke Mu of Zheng 郑穆公 627–606BC | Duke Mu of Zheng 郑穆公 627–606BC | Duke Mu of Zheng 郑穆公 627–606BC | 子臧 | 子臧 | 子臧 | 子臧 | 子臧 | 子臧 | 公子士 | 公子士 | 公子士 | 公子士 | 公子士 | 公子士 | 公子瑕 | 公子瑕 | 公子瑕 | 公子瑕 | 公子瑕 | 公子瑕 | 子俞弥 | 子俞弥 | 子俞弥 | 子俞弥 | 子俞弥 | 子俞弥 |
| | | | | | | Duke Ling of Zheng 郑灵公 605 BC | Duke Ling of Zheng 郑灵公 605 BC | Duke Ling of Zheng 郑灵公 605 BC | Duke Ling of Zheng 郑灵公 605 BC | Duke Ling of Zheng 郑灵公 605 BC | Duke Ling of Zheng 郑灵公 605 BC | Duke Xiang of Zheng 郑襄公 604–587 BC | Duke Xiang of Zheng 郑襄公 604–587 BC | Duke Xiang of Zheng 郑襄公 604–587 BC | Duke Xiang of Zheng 郑襄公 604–587 BC | Duke Xiang of Zheng 郑襄公 604–587 BC | Duke Xiang of Zheng 郑襄公 604–587 BC | 子良 | 子良 | 子良 | 子良 | 子良 | 子良 | 子游 | 子游 | 子游 | 子游 | 子游 | 子游 | 子罕 | 子罕 | 子罕 | 子罕 | 子罕 | 子罕 | 子驷 | 子驷 | 子驷 | 子驷 | 子驷 | 子驷 | 子国 | 子国 | 子国 | 子国 | 子国 | 子国 | 子孔 孔氏 | 子孔 孔氏 | 子孔 孔氏 | 子孔 孔氏 | 子孔 孔氏 | 子孔 孔氏 | 子印 | 子印 | 子印 | 子印 | 子印 | 子印 | 子丰 | 子丰 | 子丰 | 子丰 | 子丰 | 子丰 | 士子孔 大季氏 | 士子孔 大季氏 | 士子孔 大季氏 | 士子孔 大季氏 | 士子孔 大季氏 | 士子孔 大季氏 | 子然 | 子然 | 子然 | 子然 | 子然 | 子然 | 子羽 | 子羽 | 子羽 | 子羽 | 子羽 | 子羽 |
| Duke Dao of Zheng 郑悼公 586–585 BC | Duke Dao of Zheng 郑悼公 586–585 BC | Duke Dao of Zheng 郑悼公 586–585 BC | Duke Dao of Zheng 郑悼公 586–585 BC | Duke Dao of Zheng 郑悼公 586–585 BC | Duke Dao of Zheng 郑悼公 586–585 BC | Prince Xu of Zheng 公子繻 581 BC | Prince Xu of Zheng 公子繻 581 BC | Prince Xu of Zheng 公子繻 581 BC | Prince Xu of Zheng 公子繻 581 BC | Prince Xu of Zheng 公子繻 581 BC | Prince Xu of Zheng 公子繻 581 BC | Duke Cheng of Zheng 郑成公 584–571 BC | Duke Cheng of Zheng 郑成公 584–571 BC | Duke Cheng of Zheng 郑成公 584–571 BC | Duke Cheng of Zheng 郑成公 584–571 BC | Duke Cheng of Zheng 郑成公 584–571 BC | Duke Cheng of Zheng 郑成公 584–571 BC | | | | | | | | | | | | | | | | | | | | | | | | | Zichan | Zichan | Zichan | Zichan | Zichan | Zichan |
| | | | | | | | | | | | | Duke Xi of Zheng 郑僖公 570–566 BC | Duke Xi of Zheng 郑僖公 570–566 BC | Duke Xi of Zheng 郑僖公 570–566 BC | Duke Xi of Zheng 郑僖公 570–566 BC | Duke Xi of Zheng 郑僖公 570–566 BC | Duke Xi of Zheng 郑僖公 570–566 BC | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | Duke Jian of Zheng 郑简公 570–565 BC – 530 BC | Duke Jian of Zheng 郑简公 570–565 BC – 530 BC | Duke Jian of Zheng 郑简公 570–565 BC – 530 BC | Duke Jian of Zheng 郑简公 570–565 BC – 530 BC | Duke Jian of Zheng 郑简公 570–565 BC – 530 BC | Duke Jian of Zheng 郑简公 570–565 BC – 530 BC | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | Duke Ding of Zheng 郑定公 529–514 BC | Duke Ding of Zheng 郑定公 529–514 BC | Duke Ding of Zheng 郑定公 529–514 BC | Duke Ding of Zheng 郑定公 529–514 BC | Duke Ding of Zheng 郑定公 529–514 BC | Duke Ding of Zheng 郑定公 529–514 BC | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | Duke Xian of Zheng 郑献公 513–501 BC | Duke Xian of Zheng 郑献公 513–501 BC | Duke Xian of Zheng 郑献公 513–501 BC | Duke Xian of Zheng 郑献公 513–501 BC | Duke Xian of Zheng 郑献公 513–501 BC | Duke Xian of Zheng 郑献公 513–501 BC | | | | | | | | | | | | | | | | | | | |
| | | | | | | Duke Sheng of Zheng 郑声公 500–463 BC | Duke Sheng of Zheng 郑声公 500–463 BC | Duke Sheng of Zheng 郑声公 500–463 BC | Duke Sheng of Zheng 郑声公 500–463 BC | Duke Sheng of Zheng 郑声公 500–463 BC | Duke Sheng of Zheng 郑声公 500–463 BC | Duke Gong of Zheng 郑共公 455–424 BC | Duke Gong of Zheng 郑共公 455–424 BC | Duke Gong of Zheng 郑共公 455–424 BC | Duke Gong of Zheng 郑共公 455–424 BC | Duke Gong of Zheng 郑共公 455–424 BC | Duke Gong of Zheng 郑共公 455–424 BC |
| | | | | | | Duke Ai of Zheng 郑哀公 462–455 BC | Duke Ai of Zheng 郑哀公 462–455 BC | Duke Ai of Zheng 郑哀公 462–455 BC | Duke Ai of Zheng 郑哀公 462–455 BC | Duke Ai of Zheng 郑哀公 462–455 BC | Duke Ai of Zheng 郑哀公 462–455 BC | Duke You of Zheng 郑幽公 423 BC | Duke You of Zheng 郑幽公 423 BC | Duke You of Zheng 郑幽公 423 BC | Duke You of Zheng 郑幽公 423 BC | Duke You of Zheng 郑幽公 423 BC | Duke You of Zheng 郑幽公 423 BC | Duke Kang of Zheng 郑康公 395–375 BC | Duke Kang of Zheng 郑康公 395–375 BC | Duke Kang of Zheng 郑康公 395–375 BC | Duke Kang of Zheng 郑康公 395–375 BC | Duke Kang of Zheng 郑康公 395–375 BC | Duke Kang of Zheng 郑康公 395–375 BC |
| | | | | | | | | | | | | Duke Xu of Zheng 郑繻公 422–396 BC | Duke Xu of Zheng 郑繻公 422–396 BC | Duke Xu of Zheng 郑繻公 422–396 BC | Duke Xu of Zheng 郑繻公 422–396 BC | Duke Xu of Zheng 郑繻公 422–396 BC | Duke Xu of Zheng 郑繻公 422–396 BC | | | | | | | | | | | | | | | | | | | | | | | |

## Other people from Zheng

* Zichan, celebrated philosopher and statesman
* Zheng Mao (鄭瞀), exemplary woman of the Lienü zhuan
* Shen Buhai 申不害, future Prime Minister of Han and "Legalist" philosopher.