Edward I defeated Llywelyn ap Gruffudd, and so effectively conquered Wales, in 1282. He created the title Prince of Wales for his heir, the future Edward II, in 1301. Edward I's conquest was brutal and the subsequent repression considerable, as the magnificent Welsh castles such as Conwy, Harlech, and Caernarfon attest; but this event re-united under a single ruler the lands of Roman Britain for the first time since the establishment of the Kingdom of the Jutes in Kent in the 5th century, some 700 years before. Accordingly, this was a highly significant moment in the history of medieval England, as it re-established links with the pre-Saxon past. These links were exploited for political purposes to unite the peoples of the kingdom, including the Anglo-Normans, by popularising Welsh legends.