Caernarfon Castle (Welsh: Castell Caernarfon) was constructed at Caernarfon in Gwynedd, north-west Wales, by King Edward I of England, following his conquest of the area in 1283. (http://en.wikipedia.org/wiki/Caernarfon_Castle)
爱德华一世在威尔斯北部选择几处战略要地建造城堡,其中最重要的两座,就是当今的喀那芬与康威堡。几座城堡都在水边,易守难攻。