Zhào Rǔshì 趙汝适 (conventional dates ca. 1170 – ca. 1231; CBDB 3199 has no dates), Southern-Sòng imperial-clan member and maritime-trade administrator. According to the Sòngshǐ zōngshì shìxì biǎo: great-grandson of Qíwáng Zhònghū 仲忽; great-grandson of An-kāng-jùn-wáng Shìshuō; grandson of Yínqīng guānglù dàifū Bùróu 不柔; son of Shàndài 善待; descended through the Jiǎnwáng Yuánfèn line, eight generations from Tàizōng. Zì Bókě 伯可. Held the post of Tíjǔ Fújiàn lù shìbó (Maritime-Trade Commissioner for Fújiàn Circuit) at Quánzhōu in the early 1220s; in Bǎoqìng 1 (1225) composed the Zhūfān zhì 諸蕃志 (KR2k0139) — the most important pre-modern Chinese documentary monograph on the Indian-Ocean trading world, drawing on direct interviews with foreign merchants at Quánzhōu and on Zhōu Qùfēi’s Lǐngwài dàidá KR2k0116. Otherwise undocumented; the work survives but the author’s biographical details are largely lost. CBDB id 3199.