鲁共王刘余 / Liu Yu, King of Lu (Western Han)

Overview

鲁共王刘余 / Liu Yu was a son of 汉景帝 and Consort Cheng and a Western Han king of Lu. The current source uses him as a relative contrast to the more violent Jiangdu and Jiaoxi rulers and links his palace expansion to the discovery of old-script classical texts in the walls of Confucius’s former residence.

Current Profile

The episode does not present Liu Yu as an exemplary ruler. His interest in palaces, parks, animals, and music consumes space and reportedly pressures nearby residents during construction. He is nevertheless the least violent figure in the episode’s comparison, and the demolition stops becoming only a story of royal appetite when workers uncover wall-hidden texts at the former Confucius residence.

That discovery gives Liu Yu a larger textual afterlife than the episode’s compact biography can support on its own. The durable claim is that construction is associated with the recovery of old-script classics; exact titles, counts, dating, ownership, and transmission remain disputed or dependent on different received accounts.

Key Characteristics

• Western Han royal son and king of Lu from the same maternal branch as Liu Fei and Liu Duan.
• Builder of palaces and parks whose projects impose costs on surrounding residents.
• Keeper of animals and later enthusiast for music in the episode’s compact profile.
• Relative contrast within a source otherwise centered on lethal and coercive royal conduct.
• Historical figure associated with the discovery of old-script classical texts in Confucius’s former residence.

Evidence

Royal identity and comparative role:

• Hanji 237 identifies Liu Yu as Jingdi’s son in Consort Cheng’s branch and uses him as the relatively restrained opening comparison.

Construction and interests:

• Hanji 237 describes palace and park construction, animals, music, and displacement pressure around the building project.

Wall-hidden texts:

• Hanji 237 says demolition at Confucius’s former residence uncovers old-script classical texts within a wall.

Qualifications

This page is bounded to one compact popular-history episode. “刘渝” in the supplied summary is normalized to 刘余 from the matching Lu kingship and wall-text narrative. The source’s ordinal among Jingdi’s sons, reign length, speech impairment, resident displacement, animal keeping, and exact book counts require comparison. Received accounts differ over titles, quantities, chronology, and transmission, so the discovery should not be treated as a fully settled inventory or as proof that Liu Yu intended textual preservation.

What Changed

• Created Liu Yu as the Lu king attached to the Confucius-wall textual discovery.
• Separated the durable discovery association from disputed counts and transmission details.
• Preserved his role as a relative contrast without turning disruptive construction into exemplary rule.

Relationships

• 汉景帝 - father whose enfeoffed sons supply Liu Yu’s dynastic setting.
• 江都易王刘非 - maternal brother whose Jiangdu household forms the episode’s next comparison.
• 胶西王刘端 - maternal brother whose protected violence sharply contrasts with Liu Yu’s profile.
• 江都王刘建 - nephew whose conduct provides the episode’s most severe household and rebellion case.