Zheng (state)
Zheng (simplified Chinese: 郑国; traditional Chinese: 鄭國; pinyin: Zhèng) 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). Its ruling house had the surname Ji (姬), making them a branch of the Zhou royal house, who were given the rank of Bo (伯), corresponding roughly to a Countdom.
Read more about Zheng (state): Foundation, List of Rulers, Other People From The State of Zheng, Zheng in Astronomy