Llywelyn 'the Great', Prince of Gwynedd, Aberffraw, Lord Snowdon, "Our Royal, Ti...

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Llywelyn 'the Great', Prince of Gwynedd, Aberffraw, Lord Snowdon, "Our Royal, Titled, Noble, and Commoner Ancestors and Cousins" (website, compiled by Mr. Marlyn Lewis, Portland, OR; accessed February12, 2016), citing Richardson's Plantagenet Ancestry (Vol III, pp 422-424) and Royal Ancestry (Vol V, pp 297-298)

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