Li Deyu
Chinese writer and chancellor (787-850)
Li Deyu (Chinese: 李德裕; pinyin: Lǐ Déyù; 787 – January 26, 850), courtesy name Wenrao (文饒), formally the Duke of Wei (衛公), was a Chinese poet, politician, and writer during the Tang dynasty, serving as a chancellor during the reigns of brothers Emperor Wenzong and Emperor Wuzong and (briefly) their uncle Emperor Xuānzong. He was the leader of the so-called Li Faction in the decades-long Niu-Li Factional Struggles, and was particularly powerful during Emperor Wuzong's reign, dominating the court scene and guiding policies during the campaigns against the crumbling Uyghur Khanate and against the warlord Liu Zhen. After Emperor Wuzong's death, Emperor Xuānzong, who had long despised him for his hold on power, had him demoted and banished, where he died in exile.
Background
Li Deyu was born in 787, during the reign of Emperor Dezong. His grandfather Li Qiyun (李栖筠) served as the chief imperial censor, and his father Li Jifu would eventually serve as a chancellor during the reign of Emperor Dezong's grandson Emperor Xianzong. It was said that Li Deyu was ambitious in his youth and was studious, particularly concentrating on the Book of Han and the Zuo Zhuan. However, he did not want to submit to imperial examinations. During Emperor Dezong's Zhenyuan era (785–805), when Li Jifu was in exile, Li Deyu accompanied his father and did not seek an official career.
During Emperor Xianzong's reign
During the reign of Emperor Xianzong, Li Jifu became chancellor, and it was said that because Li Deyu wanted to avoid appearance of impropriety, he did not serve at the office of the imperial censors or one of the three main bureaus of the imperial government. Rather, he served on the staff of various regional governors.
This brief starts where responsible research should: with the source description of “Li Deyu” as chinese writer and chancellor (787-850). Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the people & ideas register because the source frames it as chinese writer and chancellor (787-850). Its deeper value depends on whether names, dates, institutions and citations support that framing.
Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Sep 20, 2026. The linked authority identifier is Q504002. VIAF identifies the subject as 3270996. The Library of Congress control number is n85012903. 2 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank.
A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Li Deyu” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.