Du You

Du You (Chinese: 杜佑; pinyin: Dù Yòu; Wade–Giles: Tu Yu) (735 – December 23, 812), courtesy name Junqing (君卿), formally Duke Anjian of Qi (岐安簡公), was a Chinese scholar, historian and chancellor of the Tang Dynasty, who devoted thirty-six years to the compilation of the Tongdian, a historical encyclopedia with 200 sections (volumes), a collection of laws, regulations, and general events from ancient times to his own. He was born to an official family in what is now Xi'an, Shaanxi, almost eighteen years before the abrupt rebellion of An Lushan. Du was "a political thinker on a grand scale," comparable to Ibn Khaldun, according to Robert G. Hoyland.

Du You was born in 735, during the reign of Emperor Xuanzong. His family was from the Tang Dynasty capital Chang'an and traced its ancestry to a line of officials of Chu, Qin Dynasty, Han Dynasty, Cao Wei, Jin Dynasty (265-420), Northern Zhou, and Tang. Du You's great-grandfather Du Xingmin (杜行敏), grandfather Du Que (杜愨), and father Du Xiwang (杜希望) all served as officials in Tang governments.

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