Yú Chénglóng 于成龍 (1617–1684), zì Běimíng 北溟, hào Yúshān 于山, posthumously Qīngduān 清端 (“Pure-and-Upright”). Native of Yǒngníng zhōu 永寧州 (modern Líshí 離石 county, Lǚliáng prefecture, Shānxī).
CBDB id 56816 confirms lifedates as 1617–1684. The catalog meta gives 1638–1700, which is incorrect: those are the dates of a different 于成龍 (CBDB id 56821, the so-called “小于成龍” / Lesser Yu — hào Zhènjiǎ 振甲 — who served as Yellow-River-and-Canal water-conservancy chief in the 1680s–90s). The two are often confused in pre-modern reference works. The senior Yu Chenglong (this person), the Qīngduān canonized official, is the author of the Yú Qīngduān zhèngshū (KR4f0026) per the Sìkù tíyào which records him as starting from fùbǎng gòngshēng (auxiliary tribute-student) and reaching Liǎngjiāng zǒngdū (Governor-General of the Two Jiang).
Career: passed only the fùbǎng (auxiliary list of the jǔrén) and not the jìnshì, but rose entirely on administrative merit. Successive posts: magistrate of Luóchéng 羅城 (Guǎngxī, where he distinguished himself by personally hauling timber to roof his county school in the post-conquest desolation); prefect of Hézhōu 合州 (Sìchuān); then Wǔchāng tóngzhī and Wǔchāng prefect concurrently; Huángzhōu Jiāngfáng dào (Huangzhou Yangtze-defense circuit-intendant) during the Sān fān war; fùshǐ (provincial vice-treasurer) of Fújiàn; xúnfǔ (governor) of Zhílì (Beijing metropolitan region); finally Liǎngjiāng zǒngdū — where he died in office, having served the Kāngxī emperor in a series of pacification and rebuilding posts from the 1660s through 1684. Posthumously canonized as Qīngduān and zèng Tàizǐ tàibǎo. The Kāngxī emperor personally praised him as “the Tianxia di-yi lian-li” — “the first incorrupt official in the realm” — making him one of the most celebrated qīngguān (uncorrupted official) of the early Qīng, with a vast Qīng-Republican folklore tradition (the Yú Chénglóng dà rén 于成龍大人 cycle of popular tales).
Author of the Yú Qīngduān zhèngshū 于清端政書 (KR4f0026), an administrative-documents compilation covering all his successive posts.