"Dinefwr Park". www.nationaltrust.org.uk. Archived from the original on 2015-12-11. Retrieved 2022-10-31.
"Dinefwr Park". www.nationaltrust.org.uk. Archived from the original on 2015-12-11. Retrieved 2022-10-31.
"Dinefwr Park". www.nationaltrust.org.uk. Archived from the original on 2015-12-11. Retrieved 2022-10-31.
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The Houses of Cunedda and Rhodri Mawr, Welsh Medieval Law: The Laws of Howell the Good (1909) by Hywel ap Cadell, translated by Arthur Wade Wade-Evans.