 The parish was in the hundred of Roose, at the heart of Little England beyond Wales, and has been largely English-speaking since the 12th century, when it was settled by Flemish immigrants.Flemish occupation is under investigation by Dyfed Archaeological Trust, but the Trust's investigations have also uncovered evidence of occupation in the late Mesolithic period of the Stone Age, some 6,000 to 8,000 years ago.Llawgwm was part of a discontiguous subsidiary manor of Walwyn's Castle, having its caput at Benton Castle nearby, in the coastal woodland to the south east of Llawgwm.