Sources
- BBC Wales: History, The emergence of the principality of Wales; extracted 26 March 2008
- Davies, John (1994). A History of Wales. New York: Penguin. ISBN 0-14-014581-8.
- Davies, John (2002). The Celts. New York: Cassell Illustrated. ISBN 1-84188-188-0.
- Evans, Gwynfor. Cymru O Hud. Abergwyngregyn.
- Morris, John E. (1996). The Welsh Wars of Edward I. Conshohocken, PA.: Combined Books. ISBN 0-938289-67-5.
- Lloyd, J.E (2004). A History of Wales; From the Norman Invasion to the Edwardian Conquest. New York: Barnes & Noble Publishing, Inc.. ISBN 0-7607-5241-9.
- Stephenson, David (1984). The governance of Gwynedd. University of Wales Press. ISBN 0-7083-0850-3.
- Warner, Philip (1997). Famous Welsh Battles. New York: Barnes & Noble Publishing, Inc.. ISBN 0-7607-0466-X.
Read more about this topic: Principality Of Wales
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