The Chronicle of the Princes of Wales records that "Maredudd son of Owain son of Gruffudd son of the lord Rhys" died in Mar 1264 "at Llanbardarn the Great and was buried in the chapter house of the monks of Strata Florida".
Married Eleanor, daughter of .... Bridgeman states that “I cannot say positively who was the wife of Meredith; but we know that he name was Elena and that he assigned her her dower in the commot of Gwynnionith” (no citation reference). He adds that “The heralds call her Eleanor, daughter of Maelgwm ap Maelgwn ap Lord Res & his wife Angharad of Wales” (no citation reference). 1
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