The Norman Conquest of England in 1066 gave birth to the Anglo-Norman State (ANS). This paper treats England and Normandy as one region respectively and points out a historical image of ANS.
J. Le Patourel already regarded each region as dominion and adopted the name of "Anglo-Norman Empire" for ANS which consisted of both regions. C. W. Hollister pointed out that there was, in the reign of Henry I, the possibility of the establishment of the "Anglo-Norman regnum" over two regions. Thus, both scholars clarified the integrality of two regions. Le Patourel based his argument on the examination of the fiscal and judicial systems in England and Normandy.
This paper examines the possibility, in the ecclesiastical field, to regard two regions as one entity so that we might well have a historical and more precise image of ANS. Thus, the following points are discussed and clarified.
1) The integrality of two regions is proved by the examination of Norman cathedrals/monasteries which owned their lands in England and of the clerics who travelled/were promoted from one side to the other.
2) Analizing archbishops' claims of primacy of Canterbury and the papal reactions, the papal view of regarding two regions as one unit is clarified.
3) The king-dukes' recognitions of their ruling territory are discussed. In terms of the papal legates, especially their requests to enter England, Henry I's reactions reveal both his idea of his ruling territory as an entity and also the historically forced change of his treatment of two regions.