found: Work cat.: McLees, D. Castell Coch, 2005:inside front cover (Castell Coch, perched on a hillside on the outskirts of Cardiff) p. 3 (Castell Coch ; the Red Castle)
found: CastleWales WWW site, 25 Oct. 2006:Castell Coch page (Castell Coch, near Cardiff, South Wales)
found: Castle UK WWW site, 25 Oct. 2006:Castell Coch page (Castell Coch is located north of Tongwynlais, 6 miles NW of Cardiff)
found: Wikipedia WWW site, 25 Oct. 2006:Castell Coch page (Castell Coch (Welsh, literally "Red Castle"), is a castle standing on the hillside above the village of Tongwynlais, north of Cardiff, Wales)