A town grew up in the shadow of the castle, made up primarily of settlers from England. Cardiff had a population of between 1,500 and 2,000 in the Middle Ages; a relatively normal size for a Welsh town in this period. It was the centre of the Norman Marcher Lordship of Glamorgan, and by the end of the 13th century, Cardiff was the only town in Wales with a population exceeding 2,000, although it remained relatively small compared with most notable towns in England and continued to be very much contained within its walls, which were begun as a wooden palisade in the early 12th century. It was of sufficient size and importance to be awarded a series of charters, notably in 1331 by William La Zouche, Lord of Glamorgan through marriage with the de Clare family, Edward III in 1359, then Henry IV in 1400, and later Henry VI.