Edward I of England suppressed a rebellion in Wales and was successful.
Edward I of England . After suppressing a minor rebellion in Wales in 1276 -- 77 , Edward responded to a second rebellion in 1282 -- 83 with a full-scale war of conquest . After a successful campaign , Edward subjected Wales to English rule , built a series of castles and towns in the countryside and settled them with English people . In the war that followed , the Scots persevered , even though the English seemed victorious at several points .