 The line of then formed the basis of the medieval walls enclosing , some which survived until the 18th century.The Anglo-Saxons called the town Baðum, Baðan or Baðon, meaning "at the baths," the source of the present name.In 675, Osric, King of the Hwicce, set up a monastic house at Bath, probably using the walled area as its precinct.