Complex sentence: Etchingham was a manor a long time before the Norman conquest of 1066, after this time the manor was taken over by the Normans, in 1166 it was left to the de Achyngham (Etchingham) family, who were well known landowners of the time.
Split into simpler sentences: Etchingham was a manor a long time before the Norman conquest of 1066; after this time the manor was taken over by the Normans. In 1166 it was left to the de Achyngham (Etchingham) family, who were well-known landowners of the time.