Sources |
- [S336463] Medieval Lands: A prosopography of medieval European noble and royal families, Charles Cawley, (Online: The Foundation for Medieval Genealogy at http://fmg.ac/Projects/MedLands/, 20XX), http://fmg.ac/Projects/MedLands/ENGLISH%20NOBILITY%20MEDIEVAL2.htm#RalphMortimerdied1246.
- [S336472] A History of Wales from the Earliest Times to the Edwardian Conquest, Sir John Edward Lloyd, (London: Longmans, Green, and Company, 1911), vol. 2, 713.
- [S336472] A History of Wales from the Earliest Times to the Edwardian Conquest, Sir John Edward Lloyd, (London: Longmans, Green, and Company, 1911), vol. 2, 645, n. 164.
|