They edified the shrine at Monte Sant'Angelo and built a mausoleum to the Hauteville family at Venosa .
Besides the encastellation of the countryside , the Normans erected several religious buildings which still survive .
Normans edified the shrine at Monte Sant'Angelo and built a mausoleum to the Hauteville family at Venosa .
Besides the encastellation of the countryside , the Normans erected several religious buildings which still survive .