“Wide and Spacious”
Ehangren
Ehangwen is the name given to Arthur’s hall or court, which is described as one of the Three Diadems of the Island of Britain. It was built by Gwlyddyn the Carpenter, according to the Welsh tales.
It’s location is unknown. Some authorities say that it was situated at Camelot (wherever that might be), while others place it in various locations around the country, including Carlisle and Castle Eden in County Durham, or if it might be Arthur’s castle Celliwig (Kelliwic) in Cornwall.
Source
Culhwch and Olwen | Late 11th century