sentences:  However, Richard's son Walter is the first recorded landholder at Cantref Selyff.Furthermore, Bernard enfeoffed the sons of the king he had displaced in the less habitable land, thereby creating a loyal Welsh aristocracy and extracting more out of his land than the Normans otherwise knew how to do.The Normans lived predominantly in the valleys and lowlands in an agrarian society while the Welsh kept to the hills and mountains living pastorally, thus creating an overall economic gain.