==References==* John Edward Lloyd, "The Welsh Chronicles" (London: H. Milford, 1929)* Ian R. Jack, "Medieval Wales" (Ithaca: Cornell University Press, 1972)* Thomas Jones, ed.
* John Edward Lloyd, "The Welsh Chronicles" (London: H. Milford, 1929)* Ian R. Jack, "Medieval Wales" (Ithaca: Cornell University Press, 1972)* Thomas Jones, ed.