Xǔ Yǒufú 許有孚 (Yuán, fl. 1341; survived into the Hóngwǔ era — preface dated túwéi zuòè = Hóngwǔ 2 [1369] èryuè), younger brother and editor of the works of Xǔ Yǒurén 許有壬. Compiled Guītáng xiǎogǎo KR4d0509 from his own carried-over copies (the master collection Zhìzhèng jí having been lost when their nephew Xǔ Zhēn 許楨, Tàicháng bóshì, was driven south under emergency conditions and abandoned his books); the recension preserved the zhìzhènggéngzǐ (1360) brother-edition that Xǔ Yǒurén himself had self-edited but not yet printed, plus 85 prose pieces sent in correspondence, plus 93 further pieces from various sources. He also wrote a bā in 1369 documenting the collection’s survival. CBDB gives no firm dates; the 1369 bá date is the latest absolute marker.