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Son of Llewelyn ab Ieuaf and Susanna verch Llewelyn Father of Ieuan ab Adda and Llewelyn ab Adda Brother of N.N. ferch Llewelyn; Margred verch Llewelyn and Ieuan ap Llewelyn, Bishop of Llanclwy
See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173392394869 (October 30, 2022; Anne Brannen, curator)