abstract:Zhang Zuo (張祚) (died 355), courtesy name Taibo (太伯), formally Prince Wei of (Former) Liang ((前)涼威王) was a ruler of the Chinese state Former Liang. He was the only ruler of Former Liang to formally declare a break from Jin Dynasty (265-420), and historical sources variously report him as having declared himself an emperor (per Jin Shu) or a prince (per Zizhi Tongjian).