Tiān Xù 天嘏 is the pen name of Hú Sījìng 胡思敬 (1870–1922; CBDB 64839), a native of Yíchūn 宜春, Jiāngxī. His zì was Jìshēng 寄生. CBDB records his dates as Tóngzhì 9 (1870) – Mínguó 11 (1922), from Qīngdài rénwù shēngzú niánbiǎo 清代人物生卒年表. He obtained the jìnshì degree in 1898 (Guāngxù 24) and served in the Board of Revenue (Hùbù 戶部) and other positions. He was a committed conservative and anti-reformist: he opposed both Kāng Yǒuwéi’s reform program and later the New Policies (xīnzhèng 新政) of the last Qīng decade. After the fall of the Qīng in 1912 he retired to a life of scholarship in Jiāngxī, devoting himself to writing about Qīng institutional history and culture from a loyalist perspective.
His writings include Wènshàn Bǐjì 問善筆記 and Guó Wén Bèi Kǎo 國聞備考, as well as the Mǎnqīng Wàishǐ 滿清外史 KR4k0180, a retrospective unofficial history of the Qīng dynasty written under the pen name Tiān Xù 天嘏. The identification of Tiān Xù with Hú Sījìng is established by scholarship on late-Qīng and early-Republican historical writing.
Within the Kanripo corpus. KR4k0180 Mǎnqīng Wàishǐ 滿清外史 (撰).