The famous appellation “three Zhang two Lu and one Zuo” was an important group of writers in the resurgent period of early Jin Dynasty.Zhang Zai,Zhang Xie and Zhang Kang were referred to as “tribrother Zhangs”.About their fathers name,however,there were two different versions in historical records as Zhang Mu and Zhang Shou which resemble each other in appearance as Chinese characters Zhang Mu and Zhang Shou.In fact,a lot of historical documents demonstrate that the name of the tri Zhangs father was Zhang Mu not Zhang Shou.Certainfying this version helps us to understand the life and official career of Zhang Zai as well as the literary creation of him and Zhang Xie.