▁ 1 1 0 0 ▁by ▁the ▁Norman ▁Gilbert ▁de ▁Cla re . ▁The ▁F lem ings , ▁said ▁to ▁have ▁arrived ▁in ▁three ▁groups ▁in ▁ 1 1 0 7 , ▁ 1 1 1 1 ▁and ▁ 1 1 5 1 , ▁are ▁likely ▁to ▁have ▁participated ▁in ▁its ▁later ▁development ▁for ▁their ▁own ▁and ▁the ▁Norm ans ' ▁protection ▁from ▁the ▁Wel sh ▁war l ords . ▁It ▁is ▁recorded ▁that ▁the ▁Const able ▁of ▁the ▁castle ▁in ▁ 1 2 0 7 ▁was ▁I to h ert , ▁son ▁of ▁Richard ▁T anc ard , ▁possibly ▁a ▁desc endant ▁of ▁the ▁first ▁Tan cred . ▁ ▁The ▁F lem ish ▁presence , ▁re put ed ▁to ▁result ▁from ▁flo ods ▁in ▁the ▁Low ▁Count ries , ▁was ▁more ▁likely ▁to ▁have ▁consisted ▁initially ▁of ▁F lem ish ▁mer cen aries ▁originally ▁in ▁the ▁inv ading ▁army ▁of ▁William ▁the ▁Con quer or , ▁who ▁in ▁reward ▁for ▁their ▁part ▁in ▁William ' s ▁victory ▁were ▁granted ▁lands ▁in ▁parts ▁of ▁Northern ▁Britain , ▁and ▁in ▁Wales ▁in ▁the ▁G ower , ▁and ▁Ger ald us ▁Camb r ensis ▁recorded ▁their ▁presence ▁in ▁the ▁H undred ▁of ▁Ro ose ▁in ▁P embro kes hire . ▁ ▁A ▁F lem ing , ▁W izo , ▁who ▁died ▁in ▁ 1 1 3 0 ▁founded ▁at ▁W ist on ▁a ▁mot te ▁and ▁ba iley ▁fort ification , ▁the ▁for er un ner ▁of ▁the ▁stone ▁castle , ▁for ▁protection ▁against ▁the