Cadwgan ap Llywarch

See Darrell Wolcott, http://www.ancientwalesstudies.org/id32.html -- he has been very active in untangling these lines.(January 12, 2016; Anne Brannen, curator)

Please see Darrell Wolcott: Llowarch ap Bran - Lord of Menai; http://www.ancientwalesstudies.org/id32.html. (Steven Ferry, April 24, 2023.)

Please see Peter Bartrum: Llywarch ap Bran 6; https://www.geni.com/documents/view?doc_id=6000000173392255856 & Gruffudd ap Cynan 3; https://www.geni.com/documents/view?doc_id=6000000173392989825 (Steven Ferry, April 24, 2023.)

Please see Darrell Wolcott: Marchweithian of Is Aled - Further Notes; http://www.ancientwalesstudies.org/id318.html. (Steven Ferry, September 9, 2023.)

Please see Darrell Wolcott: A Glamorgan Family in Gwynedd; http://www.ancientwalesstudies.org/id321.html (Steven Ferry, November 14, 2023.)

Please see Darrell Wolcott: Hwfa ap Cynddelw, Lord of Llifon: http://www.ancientwalesstudies.org/id322.html (Steven Ferry, January 23, 2024.)

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Rhodri Mawr, (Rhoderick the Great), King of all Wales, began to reign A. D. 843, and fell in battle A. D. 876. From him were descended, (besides others,) Owen Gwynnedd, Prince of Wales, A. D. 1136, and — Llowarch up Bran, Lord of Monau (Menai), and founder of the II. noble tribe of North Wales and Powys. They were brothers-in-law, their wives being sisters.

Llowarch ap Bran was succeeded by his son, Meredydd, who married his cousin, Gwenillian, granddaughter of Prince Owen Gwynnedd.

Meredydd ap Cadwgan ap Llowarch, ap Bran, of Bodorgan, whose descendant—Eva, daughter of Meredydd ap Cadwgan, of Bodorgan, his only child and heiress, married Einion Sais