As we have seen, French culture and language interacted with native English culture for several generations after the Norman Conquest. A common word such as 'castle' is a French loan word, for example; and the whole romance tradition comes from the French. But this sensibility, culture, and language becomes integrated with native culture.
As well as the beginnings of what came to be called a courtly love tradition, we can find in Early Middle English (around the time that Layamon was writing Brut) the growth of a local tradition of songs and ballads.