Ehangwen 'Wide and Spacious' Ehangren Arthur's hall, in Welsh tales, built byGwlyddyn the Carpenter, though its precise location remains a mystery. Some authorities say that it was situated atCamelot(wherever that might be), while others place it in various locations around the country, includingCarlisleandCastle EdeninCounty Durham, or if it might be Arthur's castleCelliwig(Kelliwic) inCornwall.