Zhāng Gù 張固 (fl. Xiántōng — Guānghuà, c. 860–883). Late-Táng author of the KR3l0012 Yōuxián gǔchuī 幽閒鼓吹 (1 juàn, in 25 or 26 entries). Native place and official career are not securely transmitted; the Sìkù compilers note that “his beginnings and ends are not known in detail.” From internal evidence of the Yōuxián gǔchuī he was writing in the late-Dàzhōng — Xiántōng — Guānghuà period, with entries covering events from Yuánhé through Dàzhōng. CBDB id 93447 records c_fl_earliest_year 860; id 190999 (c_index_year 883) may be the same person or a relative of the same name. No other surviving work is attested under his name.