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Immediate Family
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mother
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stepmother
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half brother
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half brother
About Madog ap Gwenwynwyn Cyfeiliog, Lord of Mawddwy
Please see Darrell Wolcott: The Other Gwenwynwyn; http://www.ancientwalesstudies.org/id167.html. (Steven Ferry, October 7, 2020.)
Please see Darrell Wolcott: Einion ap Celynin of Llwydiarth; http://www.ancientwalesstudies.org/id138.html. (Steven Ferry, October 19, 2020.)
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