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In page Llywelyn ab Iorwerth:

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Children whose parentage is uncertain:[citation needed]

  • Angharad ferch Llywelyn (c. 1212–1256), probable daughter by Joan; married Maelgwn Fychan;[citation needed]
  • Tegwared y Bais Wen ap Llywelyn (c. 1215), a son by a woman named Crysten in some sources, a possible twin of Angharad.[17][18]