KNOWN  AS   Gloucestershire  WAS ORIGINALLY  INHABITED BY   Brythonic  PEOPLES (ANCESTORS OF THE   Welsh  AND OTHER BRITISH CELTIC PEOPLES ) IN THE   Iron Age  AND   Roman  PERIODS.  AFTR THE ROMANS LEFT BRITON IN THE EARLY FIFTH CENTURY, THE BRYTHONS RE-ESTABLISHED CONTROL BUT THE TERITORIAL DIVISIONS FOR THE POST-ROMAN PERIOD ARE UNCERTAIN. THE CITY OF CAERLOYW ( Gloucester  TODAY