Zhèng Qīngzhī 鄭清之 (1176–1251), originally named Xiè 燮, zì Wénshū 文叔, later renamed Qīngzhī with zì Déyuán 德源, biéhào Ānwǎn 安晚, native of Yínxiàn 鄞縣 (modern Níngbō, Zhèjiāng). Jìnshì of Jiādìng 4 (1211). At the start of the Bǎoqìng era (1225) he played the decisive role in installing Lǐzōng on the throne after the death of Níngzōng — the so-called dìngcè zhī gōng 定策之功 — which led to a meteoric rise: he served as yòuchéngxiàng 右丞相 from 1233 and held the office of zuǒchéngxiàng 左丞相 in two later spells, finally as tàifù 太傅. As chief councillor he patronised the recall of upright officials disgraced under Shǐ Míyuǎn 史彌遠, earning the era the nickname “Xiǎo Yuányòu” 小元祐 (“Little Yuányòu”) in conscious imitation of the moral revival under Empress Dowager Gāo. Posthumous title Zhōngdìng 忠定. His biography is in Sòng shǐ 414. Surviving collected works Ānwǎntáng jí 安晚堂集 KR4d0321 (originally 60 juan, now only juan 6–12 in 7 juan, all verse). CBDB id 10363.