>>17870955The generation following the conquest was filled with people of mixed Anglosaxon/Norman parentage, importantly a number of these would go into the priesthood and become authors, so we have some awareness of how they viewed themselves and most appear to have regarded themselves as English, even for example Orderic Vitalis (Born to a French father and English mother, but spent almost his entire life in Normandy). Their writings often appear to take an English bias, with veiled criticisms of William the Conquerer
These people however were small fry, and it would take another generation or two for these sentiments to reach the parts of the upper echelons of society, while the monarchy (despite adopting some English trappings) would remain firmly French. However things rapidly shifted during the war between King John and Phillipe II. After the French captured Normandy, both sides demanded declarations of loyalty from the Anglo-Norman nobility, most of whom (especially the major ones) owned estates on both sides of the channel while threatening to seize the lands of those who pledged to the other. A couple of canny noblemen (most notably William Marshall) managed to keep both, but most were forced to choose between which lands they prefered, and this saw most of those who still regarded themselves as more Norman than English to leave the country
Though it's wrong to view this entirely in nationalistic terms, there were many who chose England out of loyalty to John despite regarding themselves as French and some even viewing all those born in England (even with Norman roots) with distain (Peter des Roches, the Bishop of Winchester for one). And there were also those who would go onto invite Prince Louis of France to invade England and replace John (though this might be argued to be irrelevent, since John was no less French than Louis). But the latter group was defeated and forced into political irrelevance, and the former group would soon follow them