It was only in 1223 when the dashing earl of Pembroke, William Marshal, built ‘an ornate castle of mortar and stones’ on top of the original site that Norman control stood firm.
Nid oedd rheolaeth y Normaniaid yn sefyll yn gadarn tan 1223, pan adeiladodd iarll nwyfus Penfro, William Marshal, ‘gastell addurnedig o forter a cherrig’ ar ben y safle gwreiddiol.