A historic stronghold located in Gwynedd, northwest Wales, is called Caernarfon Castle. The first stronghold of the site was a motte-and-bailey castle constructed in the late 11th century. William the Conqueror focused on Wales after conquering England with the Norman Conquest. Nominally ruling all of northern Wales was the Norman Robert of Rhuddlan, according to the Domesday Survey of 1086. In 1088, the Welsh killed him. By constructing three castles—one at Aberlleiniog on Anglesey, one at Ca ... (Read More)