Zhāng Cúnzhōng 張存中 (fl. early 14th century)
Zì Déyōng 德庸. Native of Xīnān 新安 (Huīzhōu 徽州 / Huīyáng region, modern Ānhuī). Yuan-period Lǐxué scholar in the Yúnfēng / HúBǐngwén orbit. CBDB id 107000; lifedates not securely recorded.
His one surviving Kanripo work is the Sìshū tōngzhèng 四書通證 (KR1h0035) in 6 juàn — an appendix to Hú Bǐngwén’s Sìshū tōng (KR1h0034), supplying the míngwù 名物 (names-and-objects) verification that Hú Bǐngwén had not provided. Hú Bǐngwén himself wrote the preface for it. As the Sìkù tíyào at KR1h0035 notes, the work fits within the same Cheng-Zhu orthodox framework, and its method is to verify each citation in the Sìshū jízhù against its source — but it is over-reverent of orthodoxy and sometimes screens off genuine textual problems where they would inconvenience the orthodox reading.
Earlier predecessors named in Hú Bǐngwén’s preface to this work: Dù Gōushān 杜緱山 (jin: Dù Yīng 杜瑛, YǔMèng pángtōng 語孟旁通) — too verbose; Xuē Shòuzhī 薛壽之 / Xuē Yǐnnián 薛引年 (Sìshū yǐnzhèng 四書引證) — too verbose. Zhāng Cúnzhōng’s contribution, per Hú Bǐngwén, is the careful trimming-down of these earlier projects.