This new book examines all of the available source materials, dating from the ninth century to the present, that have associated Arthur with sites in Wales. The material ranges from Medieval Latin chronicles, French romances and Welsh poetry through to the earliest printed works, antiquarian notebooks, periodicals, academic publications and finally books, written by both amateur and professional historians alike, in the modern period that have made various claims about the identity of Arthur and his kingdom. All of these sources are here placed in context, with the issues of dating and authorship discussed, and their impact and influence assessed. This book also contains a gazetteer of all the sites mentioned, including those yet to be identified, and traces their Arthurian associations back to their original source.