	Henry III also made extensive use of the castle, but during his visit at Christmas 1228 a gale destroyed the wooden keep on the motte. The keep was apparently not repaired, and a building for the king's use was built in the bailey instead. In 1244, when the Scots threatened to invade England, King Henry III visited the castle and ordered it to be rebuilt in white limestone, at a cost of about £2,600. The work was carried out between 1245 and 1270, and included the construction of a towered curtain wall, a gatehouse of considerable size with two large towers, two smaller gatehouses, a small watergate, a small gateway into the city, a chapel, and a new stone keep, first known as the King's, later Clifford's, Tower.