Liber Landavensis, The. W. J. Rees. Llandovery, 1840.
Lives of the British Saints. S. Baring-Gould and John Fisher. London, 1907.
Meaning of History, The. Frederic Harrison. London, 1894.
Monasticon Anglicanum. William Dugdale. London, 1655-73.
Medieval Wales. A. G. Little. London, 1902.
Notitia Monastica. Thomas Tanner. London, 1744.
Newman's Historical Sketches.
Oxford Studies in Social and Legal History. General Editor, Vinogradoff. Vol. I. Valor Ecclesiasticus, Savine. Oxford, 1909.
Old Churches of Arllechwedd, The. Herbert L. North. Bangor, 1906.
Peckham's Register. C. T. Martin. London, 1882-85.
Pennant's Tours in Wales. Caernarvon, 1883. John Rhys Caernarvon, 1883
Portionary Churches of Medieeval North Wales, The. A. N. Palmer. Wrexham, 1886.
Red Book of Hergest, The. Vol. i. Rhys and Evans. Oxford, 1887.
Rymer's Fadera.
St. Asaph, The Diocese of. D. R. Thomas. London, 1874.
Stephens' Literature of the Kymry. Llandovery. 1849.
Speculum Ecclesiae. Brewer. London.
Tribal System in Wales, The. Frederic Seebohm. London, 1904.
Wales: The Story of the Nations. Owen Edwards. London, 1902.
Welsh Abbeys, Being Short Accounts of their Abbots, Lands, Buildings and Churches. John A. Randolph. Carmarthen, 1905.
Yn y Lhyvyr Hwnn, a Ban o gyfreith Howel. J. H. Davies. Bangor, 1902
