Cynan Garwyn has little more recorded of him than his name and that he was the ruler of lands in the Kingdom of Powys, Wales in the seventh century. Even those records are in poetry or manuscripts written more than two hundred years after he is thought to have lived. Medeival kingdoms of Wales. ... For an explanation of often confusing terms such as Great Britain, Britain, United Kingdom and England, see British Isles (terminology). ...

He is thought to be the eldest son of Brochwel Ysgithrog and father of Selyf ap Cynan, and usually considered as a Prince of Powys who held authority for a period between those two. Some genealogies record that he married Gwenwynwyn "of the Scots". Brochwel ap Cyngen (died c. ...

It is sometimes argued that he died with his son at the Battle of Chester in circa 605 AD or 615 AD but any precise description would be based more on the desire to create a myth of the foundation of a dynasty or legend of Powsyian glory than on available evidence. Chester is the county town of Cheshire in North West England. ...

References

• Kari Maund (2000) The Welsh Kings: The Medieval Rulers of Wales (Tempus)

• John Edward Lloyd (1911) A history of Wales from the earliest times to the Edwardian conquest (Longmans, Green & Co.)