Nielsen Hayden genealogy
Llywarch ap Trahearn

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Name Llywarch ap Trahearn Gender Male Death Aft 1124 [1] Alternate death Abt 1129 [2, 3] Person ID I4091 Ancestry of PNH, TNH, and others Last Modified 15 Sep 2020
Father Trahearn ap Caradog, King of Gwynedd, b. of Arwystli, Wales d. 1081
Family ID F2955 Group Sheet | Family Chart
Children + 1. Gwladus ferch Llywarch Family ID F2335 Group Sheet | Family Chart Last Modified 9 Dec 2015
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Notes - Of the identity of the mother of Gwladus ferch Llywarch, Stewart Baldwin (citation details below) notes: "Bartrum p. 354 gives Dyddgu ferch Iorwerth ap Cadwgan ab Elystan Glodrudd in this position, but his only source is the late visitation LD.ii.24, which names Dyddgu as the mother of another child of Llywarch, but not of Gwladus (#5). In addition, the sources given by Bartrum for Dyddgu's alleged father Iorwerth ap Cadwgan are all late 16th century or later, so Iorwerth's existence is also uncertain. In my opinion, this link should be regarded as dubious."
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Sources - [S885] Stewart Baldwin, Llywelyn ap Iorwerth ancestor table.
- [S145] Ancestral Roots of Certain American Colonists Who Came to America Before 1700 by Frederick Lewis Weis and Walter Lee Sheppard, Jr. 8th edition, William R. Beall & Kaleen E. Beall, eds. Baltimore: Genealogical Publishing Company, 2004, 2006, 2008.
- [S4384] George Eldridge, Hydrographer, and Eliza Jane His Wife: Their Ancestors and Their Descendants by Henry James Young. Carlisle, Pennsylvania: 1982.
- [S885] Stewart Baldwin, Llywelyn ap Iorwerth ancestor table.