Family
 Cadell ap Rhodri of Dinefwr, King of Seisyllwg 1)Born ± 850 Died 909, approximately 59 years Notes: Cadell was the second son of Rhodri the Great of Gwynedd and Angharad, a princess from Seisyllwg. In 872 Angharad's brother Gwgon, King of Seisyllwg, drowned without leaving an heir. Rhodri became steward over the kingdom, and while he was unable to make a legal claim to the throne, he was able to install Cadell as king. Married/ Related to: N.N. Child: 1. Hywel ap Cadell of Dinefwr, King of Dyfed, Powys and Gwynedd, Prince of Seisyllwg and Deheubarth, King of South Wales 1)Born ± 880 Died 950, approximately 70 years Notes: Hywel Dda (English: Hywel the Good) or Hywel ap Cadell (c.880 - 950) was a King of Deheubarth who eventually came to rule most of Wales. He became the sole king of Seisyllwg in 920 and shortly thereafter established Deheubarth, and proceeded to gain control over the entire country from Prestatyn to Pembroke. As a descendant of Rhodri Mawr through his father Cadell, Hywel was a member of the Dinefwr branch of the dynasty. He was recorded as King of the Britons in the Annales Cambriae and the Annals of Ulster. | |||
Sources
1) Source: Llywelyn ap Iorwerth ancestor table . External Linkhttp://sites.rootsweb.com/~medieval/llywelyn.htm (Data from secondary evidence)