Chinese nobility in the context of Nobility

The Han dynasty was an imperial dynasty of China (202 BC – 9 AD, 25–220 AD) established by Liu Bang and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–206 BC) and a warring interregnum known as the Chu–Han Contention (206–202 BC), and it was succeeded by the Three Kingdoms period (220–280 AD). The dynasty was briefly interrupted by the Xin dynasty (9–23 AD) established by the usurping regent Wang Mang, and is thus separated into two periods—the Western Han (202 BC – 9 AD) and the Eastern Han (25–220 AD). Spanning over four centuries, the Han dynasty is considered a golden age in Chinese history, and had a permanent impact on Chinese identity in later periods. The majority ethnic group of modern China refer to themselves as the "Han people" or "Han Chinese". The spoken Chinese and written Chinese are referred to respectively as the "Han language" and "Han characters".

The Han emperor was at the pinnacle of Han society and culture. He presided over the Han government but shared power with both the nobility and the appointed ministers who came largely from the scholarly gentry class. The Han Empire was divided into areas directly controlled by the central government called commanderies, as well as a number of semi-autonomous kingdoms. These kingdoms gradually lost all vestiges of their independence, particularly following the Rebellion of the Seven States. From the reign of Emperor Wu (r. 141–87 BC) onward, the Chinese court officially sponsored Confucianism in education and court politics, synthesized with the cosmology of later scholars such as Dong Zhongshu.

The Han dynasty (202 BCE – 220 CE) was a period of Imperial China divided into the Western Han (202 BCE – 9 CE) and Eastern Han (25–220 CE) periods, when the capital cities were located at Chang'an and Luoyang, respectively. It was founded by Emperor Gaozu of Han and briefly interrupted by the regime of Wang Mang (r. 9–23 CE) who usurped the throne from a child Han emperor.

The Han dynasty was an age of great economic, technological, cultural, and social progress in China. Its society was governed by an emperor who shared power with an official bureaucracy and semi-feudal nobility. Its laws, customs, literature, and education were largely guided by the philosophy and ethical system of Confucianism, yet the influence of Legalism and Daoism (from the previous Zhou dynasty) could still be seen. Members of the scholarly-gentry class who aspired to hold public office were required to receive a Confucian-based education. A new synthetic ideology of Han Confucianism was created when the scholar Dong Zhongshu (179–104 BCE) united the Confucian canon allegedly edited by Kongzi, or Confucius (551–479 BCE), with cosmological cycles of yin and yang and the Chinese five elements.

The gentry, or landed gentry in China was the elite who held privileged status through passing the Imperial exams, which made them eligible to hold office. These literati, or scholar-officials, (shenshi 紳士 or jinshen 縉紳), also called 士紳 shishen "scholar gentry" or 鄉紳 xiangshen "local gentry", held a virtual monopoly on office holding, and overlapped with an unofficial elite of the wealthy. The Tang and Song dynasties expanded the civil service exam to replace the nine-rank system which favored hereditary and largely military aristocrats. As a social class they included retired mandarins or their families and descendants. Owning land was often their way of preserving wealth.

After Liu Bang defeated Xiang Yu and proclaimed himself emperor of the Han dynasty, he followed the practice of Xiang Yu and enfeoffed many generals, noblemen, and imperial relatives as kings (Chinese: 王; pinyin: wáng), the same title borne by the sovereigns of the Shang and Zhou dynasties and by the rulers of the Warring States. Each king had his own semi-autonomous kingdom. This was a departure from the policy of the Qin dynasty, which divided China into commanderies governed by non-hereditary governors.

The kings were divided into two groups: yìxìng wáng, literally "kings of different surnames", and tóngxìng wáng, literally "kings of the same surname", i.e., the imperial surname Liu. All of the initial kings were yixing wang, with many tongxing wang being created on former territories of removed yixing wang. The yixing wang represented an obvious threat to the Han empire, and Liu Bang and his successors suppressed them as quickly as was practical: they had disappeared by 157 BC. The tongxing wang were originally left to their own devices but, after the Rebellion of the Seven States in 154 BC, their independence was curtailed. Eventually they lost most of their autonomy. For this reason, the title is also translated as "prince" when referring to later kings of the dynasty, to reflect both their link to the ruling house and the vestigial nature of the former vassal kingdoms.

Ding (Chinese: 鼎; pinyin: dǐng) are prehistoric and ancient Chinese cauldrons standing upon legs with a lid and two fancy facing handles. They are one of the most important shapes used in Chinese ritual bronzes. They were made in two shapes: round vessels with three legs and rectangular ones with four, the latter often called fāng dǐng (Chinese: 方鼎; lit. 'square ding'). They were used for cooking, storage, and ritual offerings to the gods or to ancestors.

The earliest recovered examples are ceramic tripods from the Neolithic Peiligang culture, but they are better known from the Chinese Bronze Age, particularly after the Zhou deemphasized the ritual use of huangjiu alcohol practiced by the Shang kings. Under the Zhou, the ding and the privilege to perform the associated rituals became symbols of authority. The number of permitted ding varied according to one's rank in the Chinese nobility: the Nine Ding of the Zhou kings were a symbol of their rule over all China but were lost by the first emperor, Shi Huangdi in the late 3rd century BCE. Subsequently, imperial authority was represented by the Heirloom Seal of the Realm, carved out of the sacred Heshibi; it was lost at some point during the Five Dynasties after the collapse of the Tang.

The Northern Liang (Chinese: 北涼; pinyin: Běi Liáng; 397–439) was a dynastic state of China and one of the Sixteen Kingdoms in Chinese history. It was ruled by the Juqu (沮渠) family of Lushuihu ethnicity, though they are sometimes categorized as Xiongnu in some historiographies. Although Duan Ye of Han ethnicity was initially enthroned as the Northern Liang ruler with support from the Juqu clan, Duan was subsequently overthrown in 401 and Juqu Mengxun was proclaimed monarch.

All rulers of the Northern Liang proclaimed themselves "wang" (translatable as either "prince" or "king"). It was also only known as "Liang" (涼) from 399 to 401 and from 431 to 433, as their rulers took on several lesser titles while they were acting as vassals. To distinguish with the other Liang states, they were given the prefix of "Northern" by historiographers as they controlled northern Gansu when they first established. They later went on to rule the entirety of the Hexi Corridor with the key city of Guzang (姑臧, in modern Wuwei, Gansu) as their capital.

The social structure of China has an expansive history which begins from the feudal society of Imperial China to the contemporary era. There was a Chinese nobility, beginning with the Zhou dynasty. However, after the Song dynasty, the powerful government offices were not hereditary. Instead, they were selected through the imperial examination system, of written examinations based on Confucian thought, thereby undermining the power of the hereditary aristocracy.

Imperial China divided its society into four occupations or classes, with the emperor ruling over them. Throughout this time period, there were attempts to eradicate this system. Social mobility was difficult, or sometimes nearly impossible, to achieve as social class was primarily defined by an individual's identity. To rise required passing a very difficult written exam. The great majority failed, but for those who passed their entire family rose in status.

The Southern Liang (Chinese: 南涼; pinyin: Nán Liáng; 397–404, 408–414) was a dynastic state of China listed as one of the Sixteen Kingdoms in Chinese historiography. Members of the ruling Tufa clan were of Xianbei ethnicity and distant relatives of the Tuoba imperial house of the Northern Wei dynasty. According to the Book of Jin, the surname of the ruling house was changed from Tuoba to Tufa because one of the Tufa ancestors was born on a blanket, and in the Xianbei language, "Tufa" meant "blanket."

All rulers of the Southern Liang proclaimed themselves wang (king). The state was briefly discontinued in 404 after Tufa Rutan surrendered to the Later Qin, but restored in 408. As the state grew in power, the Tufa rulers also elevated their peerages before claiming the title of King of Liang in 402. It was hence only known as "Liang" (涼) from 402 to 404 and 408 to 414. They are given the prefix of "Southern" in historiography as they were based south of the other Liang states in northeastern Qinghai, although after occupying central Gansu, they briefly shifted the capital to the major city of Guzang (姑臧, in modern Wuwei, Gansu).

The Western Qin (Chinese: 西秦; pinyin: Xī Qín; 385–400, 409–431) was a dynastic state of China ruled by the Qifu clan of Xianbei ethnicity during the era of Sixteen Kingdoms. All rulers of the Western Qin declared themselves "wang", translatable as either "king" or "prince." They ruled an area corresponding to modern-day southwestern Gansu in Northwest China, also known as the Longxi region, along with parts of northeastern Qinghai in the later years. The state went by various different names as their rulers opted for lesser peerages while they were acting as vassals, and they were only known as "Qin" (秦) from 395 to 400, from 409 to 411 and from 414 to 431.

The Western Qin was briefly discontinued in 400 after Qifu Gangui surrendered to the Later Qin before it was revived in 409. They also frequently shifted their capital from time to time, with Fuhan (枹罕, in modern Linxia, Gansu) as their longest-serving capital at 18 years without interruption. They are given the prefix of "Western" in historiography to distinguish them with the Former Qin and Later Qin as they were situated to the west of the two states.

In Chinese alchemy, elixir poisoning refers to the toxic effects from elixirs of immortality that contained metals and minerals such as mercury and arsenic. The official Twenty-Four Histories record numerous Chinese emperors, nobles, and officials who died from taking elixirs to prolong their lifespans. The first emperor to die from elixir poisoning was likely Qin Shi Huang (d. 210 BCE) and the last was the Yongzheng Emperor (d. 1735 CE). Despite common knowledge that immortality potions could be deadly, fangshi and Daoist alchemists continued the elixir-making practice for two millennia.