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Cynan Dindaethwy ap Rhodri

Cynan Dindaethwy ap Rhodri
Son of Rhodri.

Cynan Dindaethwy (English: "Cynan of Dindaethwy") or Cynan ap Rhodri ("Cynan son of Rhodri") was a king of Gwynedd (reigned c. 798 c. 816) in Wales of the Early Middle Ages. Cynan was the son of Rhodri Molwynog and ascended to the throne of Gwynedd upon the death of King Caradog ap Meirion in 798. His epithet refers to the commote of Dindaethwy in the cantref Rhosyr. Unlike later kings of Gwynedd, usually resident at Aberffraw in western Anglesey, Cynan maintained his court at Llanfaes on the southeastern coast.[1] Cynan's reign was marked by a destructive dynastic power struggle with a rival named Hywel, usually supposed to be his brother.

There is no historical record of Cynan's early years as king, but his reign ended in a combination of natural disasters and military reverses. In 810, there was a bovine plague that killed many cattle throughout Wales. The next year Deganwy, the ancient wooden court of Maelgwn Gwynedd, was struck by lightning.

A destructive war between Cynan and Hywel raged on Anglesey between 812 and 816, ultimately ending with Cynan's defeat and banishment. Cynan and Hywel are said to be brothers in historical works such as Lloyd's History of Wales, although Lloyd does not cite its source. The Annals of Wales mention the pair only by name, without any title, relation, or patronym. (In comparison, it takes care to point out the brotherly nature of Elisedd's slaughter of Gruffydd ap Cyngen in Powys around the same time.) The genealogies from Jesus College MS 20 deny Cynan and Hywel were brothers at all, instead making Hywel the son of Caradog ap Meirion and a distant cousin of Cynan Dindaethwy son of Rhodri Molwynog. The Harleian genealogies agree with this. Cynan died within a year of his exile according to the Annals of Wales and the Irish Annals.

After Cynan's death, there was a battle at his former court at Llanfaes on Anglesey noted by the chronicles, but the combatants are not identified. Various historical works assume it was an invasion by the Mercians, by Ecgberht of Wessex, or by the Vikings, but there is no authority for those claims. As it took place at Cynan's court, it could as easily have been a struggle between Hywel and remnants of Cynan's supporters.


CHILDREN of Cynan Dindaethwy ap Rhodri:
  1. Ethyllt ferch Cynan. Cynan's daughter Esyllt became the mother of Merfyn Frych ap Gwriad, the first King of Gwynedd (825-844) known not to have descended from the male line of Cunedda.


Cynan Dindaethwy ap Rhodri
Ethyllt ferch Cynan married Gwriad ap Elidyr
Merfyn Frych
           Rhodri Mawr (The Great) married Angharad ferch Meurig
    |                                                                    |
Cadell ap Rhodi                                              Anarawd ap Rhodri, King of Gwynedd     
Hywel Dda and Elen ferch Llywarch
Angharad ferch Hywel Dda and Tudor Trevor
Dyngad ap Tudor Trevor and Sissely 
Rhiwallon ap Dyngad. 
Caragdog ap Rhiwallon. 
Breichiol ap Caradog. 
Pyll ap Breichiol (c1060-?).
Meurig ap Pyll (c1095-?). 
Caradog of Penrhos. (c1125-?). 
Iorwerth ap Caradog and Alis ferch Bleddyn. (c1160-?).
Adam Gwent and (miss) de Seymour
John ap Adam  (Adam Fynchan)
(Sir) John ap Adam and Elizabeth de Gournay
(Sir) Thomas ap Adam and Joan Inge
William ap Adam
John ap Adam
Thomas ap Adam
John ap Adam
(Sir) John ap Adams  (He added the "s" to the name, and so his descendants use Adams instead of Adam)
Roger Adams
Thomas Adams
John Adams
John Adams
John Adams
Richard Adams and Margaret Armager
Robert Adams and Elizabeth Sharlon
Robert Adams and Eleanor Wilmot
Elizabeth Adams and Edward Phelps
Samuel Phelps and Sarah Chandler
John Phelps and Sarah Andrews
John Phelps and Deborah Lovejoy
Samuel Phelps and Margaret Nevins
Ebenezer Ferrin and Lydia Phelps
Samuel Ferrin and Sally Clotilda Powell
Lydia Powell Ferrin and George William Washington Williams
George William Williams and Harriett Thurston
Minnie Williams and Clive Vernon Tenney
Mildred Ella Tenney and Glenn Russell Handy
Deborah Lee Handy and Rodney Allen Morris