北朝边州设置考证三则

Three Pieces of Textual Researches on the Settings of Border Prefectures in the Period of Northern Dynasties

随着国境的逐步拓展,北魏国家相继设置了数个豫州。由于州名的变动、省称等原因,史家对诸豫州设置细节的描述便显得较为繁杂。北魏后期拓境西南,在当地设立了两个益州,一个是正始初年设治于武兴的东益州,一个是永平初年分梁州晋寿而设置的益州。东魏时期治于下邳的东徐州,除了初期为萧梁短暂占领之外,此后一直为东魏国家所控制。

With the territory expanding gradually,the Northern Wei Dynasty set up many prefectures which were all named Yuzhou( 豫州). However,owing to the frequent change and omitted records of the names,historian's description of the setting details of these several Yuzhou seemed to be complex. In the late Northern Wei Dynasty,when the country expanded territory in the southwest,two Yizhou( 益州) were set up successively. In the Eastern Wei Dynasty,Dongxuzhou( 东徐州),which located in Xiapi( 下邳),had only been occupied by Liang army for a short period initially,and was effectively controlled by Eastern Wei afterwards.