Nielsen Hayden genealogy
Bleddyn ap Cynfyn, King of Gwynedd & Powys

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Name Bleddyn ap Cynfyn [1] Suffix King of Gwynedd & Powys Gender Male Death 1075 [2, 3, 4] Person ID I9865 Ancestry of PNH, TNH, and others Last Modified 16 Sep 2020
Father Cynfyn ap Gwerystan, b. Abt 1000 Mother Angharad ferch Maredudd Family ID F2994 Group Sheet | Family Chart
Family 1 Haer ferch Cillin Children + 1. Maredudd ap Bleddyn ap Cynfyn, b. of Powys, Wales d. 1132
Family ID F979 Group Sheet | Family Chart Last Modified 7 May 2025
Family 2 (Unknown fourth wife of Bleddyn ap Cynfyn) Children + 1. Cadwgon ap Bleddyn ap Cynfyn d. 1111 Family ID F17611 Group Sheet | Family Chart Last Modified 12 Aug 2020
Family 3 (Unknown wife of Bleddyn ap Cynfyn) Children + 1. Efa ferch Bleddyn ap Cynfyn Family ID F17614 Group Sheet | Family Chart Last Modified 12 Aug 2020
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Sources - [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.
- [S903] The Dictionary of Welsh Biography. National Library of Wales, 2007 and ongoing.
- [S3215] Medieval Welsh Ancestors of Certain Americans by Carl Boyer III. Santa Clarita, California, 2004.
- [S4384] George Eldridge, Hydrographer, and Eliza Jane His Wife: Their Ancestors and Their Descendants by Henry James Young. Carlisle, Pennsylvania: 1982.