Chinese states

Ancient Chinese States (simplified Chinese: 诸侯; traditional Chinese: 諸侯; pinyin: Zhūhóu) were typified by variously sized city states and territories that existed in China prior to its unification by Qin Shi Huang in 221 BCE. In many cases these were vassal states characterized by tribute paid to the ruling Zhou dynasty (1046–256 BCE). Such states and fiefdoms would again emerge during later dynasties as a political expedient when required.

According to the sinocentric viewpoint and the Mandate of Heaven, China was the center of the world and the incumbent emperor its only ruler; all other would-be potentates and rulers were merely vassals of the Middle Kingdom. As a result, from the earliest times the Chinese viewed the world as a series of concentric spheres of influence emanating outward from their capital. Within the closest circle lay the vassal states who pledged allegiance to the Zhou ruler. Apart from Zhou dynasty itself, which occupied territory around its capital, each state bore the suffix -guó (國/国) meaning state or nation. Of the 150 or so states, some were little more than a small fortified town or city, and others had a capital and other urban areas, controlling significant amounts of territory.

Following the overthrow of the Shang dynasty in 1046 BCE, the early kings made hereditary land grants to various relatives and descendants. These enfeoffments were accompanied by a title according to the Five Orders of Nobility (五等爵位), with only the Zhou ruler bearing the title of "King" (, wáng). Along with the land and title came a responsibility to support the Zhou king during an emergency and to pay ritual homage to the Zhou ancestors. In the Yellow River Valley, of the earliest vassal states, the State of Cai was founded following a grant of land by the first Zhou King to his younger brother. Other states founded at this time included Cao, Yan, Jin, and Chen. The central State of Song was created as a land grant to the nobility of the defeated Shang dynasty. On the periphery, the states of Yan, Qi, and Jin in the north and northeast had more room to expand and grew into large states. In the south, Xiong Yi was granted the fiefdom of Chu, which grew powerful and its later rulers declared themselves kings. At this time, states (such as Yue) that were considered not as civilized were not eligible for vassaldom. Around the borders of the main states lay many smaller entities which over time would be absorbed by their larger neighbors.

...
Wikipedia