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Son of Llewelyn Goch ap Rhys and N.N. ferch Einion Fychan Father of Dafydd ap Philip Half brother of Margred verch Llewelyn Goch
See Peter Bartrum, https://cadair.aber.ac.uk/dspace/bitstream/handle/2160/5149/BLEGYWR... (October 30, 2019; Anne Brannen, curator)