Lǚ Xīzhé 呂希哲 (fl. c. 1089 — early 12th century; lifedates uncertain), zì Yuánmíng 原明. Of the great Sòng Lǚshì family of Shòuzhōu 壽州 (originally of Láizhōu 萊州). Son of Lǚ Gōngzhù 呂公著 (1018–1089, Sītú chancellor); great-grandson of Lǚ Yíjiǎn 呂夷簡 (978–1043, Tàishī chéngxiàng) — three generations of Lǚshì prime ministers. Refused office while his father was prime minister; entered service after his father’s death (1089). Career: Bīngbù yuán wàiláng, Chóngzhèng diàn shuōshū, Mìgé jiàolǐ, Zhī Huáizhōu; Guānglù shǎoqīng under Hui-zōng; Zhī Cáozhōu; banished under the Yuányòu dǎng purge of 1102; restored to Zhī Xiāngzhōu and Zhī Xíngzhōu; ended as Fèngcí sinecure-holder. Biography: Sòng shǐ j. 336. The principal example of late-Northern-Sòng intellectual eclecticism — studied under Jiāo Qiānzhī 焦千之, Sūn Fù 孫復, Shí Jiè 石介 (the Tàixué tradition), the two Chéng brothers (the Luò school), Zhāng Zǎi 張載 (the Guān school), and the Wáng Ānshí father-and-son (the Xīníng reform). Author of the Lǚshì zá jì 呂氏雜記 (KR3j0099).