Geraint, known in Latin as Gerontius, was a King of Dumnonia who ruled in the early 8th century. During his reign, it is believed that Dumnonia came repeatedly into conflict with the neighbouring Anglo-Saxon Kingdom of Wessex. Geraint was the last recorded king of a unified Dumnonia, and was called King of the Welsh by the Anglo-Saxon Chronicle. Subsequent kings of Dumnonia reigned over an area that was eventually reduced to the limits of present-day Cornwall.
Dumnonia is the Latinised name for a Brythonic kingdom that existed in Sub-Roman Britain between the late 4th and late 8th centuries CE in the more westerly parts of present-day South West England. It was centred in the area of modern Devon, but also included modern Cornwall and part of Somerset, with its eastern boundary changing over time as the gradual westward expansion of the neighbouring Anglo-Saxon kingdom of Wessex encroached on its territory. The spelling Damnonia is sometimes encountered, but that spelling is also used for the land of the Damnonii, later part of the Kingdom of Strathclyde, in present-day southern Scotland. The form Domnonia also occurs and shares a linguistic relationship with the Breton region of Domnonée.
Petroc or Petrock was a British prince and Christian saint.
Dyfnwal Moelmud was accounted as an early king and lawmaker among the Welsh, credited with the codification of their standard units of measure. He also figures as a legendary king of the Britons in Geoffrey of Monmouth's pseudohistorical History of the Kings of the Britons.
In Arthurian legend, Gorlois of Tintagel was the Duke of Cornwall. He was the first husband of King Arthur's mother Igraine and the father of her daughters, Arthur's half-sisters. Her second husband was Uther Pendragon, the High King of Britain and Arthur's father, who marries her after killing him.
Constantine was a 6th-century king of Dumnonia in sub-Roman Britain, who was remembered in later British tradition as a legendary King of Britain. The only contemporary information about him comes from Gildas, who castigated him for various sins, including the murder of two "royal youths" inside a church. The historical Constantine is also known from the genealogies of the Dumnonian kings, and possibly inspired the tradition of Saint Constantine, a king-turned-monk venerated in Southwest Britain and elsewhere.
Cador is a legendary Duke of Cornwall, known chiefly through Geoffrey of Monmouth's pseudohistorical Historia Regum Britanniae and previous manuscript sources such as the Life of Carantoc. In Welsh genealogical records, he appears as Cado (Cadwr), the son of Cornish king Geraint. Early sources present him as a relative of King Arthur, though the details of their kinship are usually left unspecified.
Geraint is a character from Welsh folklore and Arthurian legend, a valiant warrior possibly related to the historical Geraint, an early 8th-century king of Dumnonia. It is also the name of a 6th-century Dumnonian saint king from Briton hagiographies, who may have lived during or shortly prior to the reign of the historical Arthur. The name Geraint is a Welsh form of the Latin Gerontius, meaning "old man".
Erbin of Dumnonia was a 5th-century King of Dumnonia and saint of Wales.
Morgannwg was a medieval Welsh kingdom formed via the merger of the kingdoms of Glywysing and Gwent.
Cuthwulf, also sometimes Cutha, was the third son of Cuthwine, and consequently a member of the House of Wessex. Although a member of the direct male line from Cynric to Egbert, Cuthwulf was never king. He is said to have been born circa 592, and his death date is unknown.
Huwal was a Brittonic monarch of the early to mid-10th century whose name appears in the Anglo-Saxon Chronicle as the ruler of the "West Welsh". His identity is a matter of debate: "West Welsh" in medieval English sources usually refers to the Cornish or Dumnonians, suggesting Huwal may have been an otherwise unknown king of that region, but many scholars identify him instead with Hywel Dda of Deheubarth, in western Wales.
Events from the 10th century in the Kingdom of England.
Petroc Baladrddellt was a 7th-century King of Dumnonia.
Clemen ap Bledric was a 7th-century King of Dumnonia.
Bledric ap Custennin was a 6th- and 7th-century ruler of Dumnonia.
The Battle of Hingston Down took place in 838, probably at Hingston Down in Cornwall between a combined force of Cornish and Vikings on the one side, and West Saxons led by Ecgberht, King of Wessex on the other. The result was a West Saxon victory. According to the Anglo-Saxon Chronicle, which called the Cornish the West Welsh:
