What Brittonic dialect was spoken in the kingdom who had the father of Owain mab Urien as king?
Rheged Rheged (] ) was one of the kingdoms of the "Hen Ogledd" ("Old North"), the Brittonic-speaking region of what is now Northern England and southern Scotland, during the post-Roman era and Early Middle Ages. It is recorded in several poetic and bardic sources, although its borders are not described in any of them. Some modern scholars have suggested that it included what is now Cumbria in North West England and possibly extended into Lancashire and Scotland. In some sources, Rheged is intimately associated with the king Urien Rheged and his family. Its inhabitants spoke Cumbric, a Brittonic dialect closely related to Old Welsh.
Unified Cornish Unified Cornish (UC) ("Kernewek Uny[e]s", "KU") is a variety of the Cornish language of the Cornish revival. Developed gradually by Robert Morton Nance during and before the 1930s, it derived its name from its standardisation of the variant spellings of traditional Cornish MSS. Nance's recommended spelling and grammar, based on Middle Cornish, soon supplanted Henry Jenner's system, which had been based largely on Late Cornish. Most of the older generation of Cornish users alive today would have started under this system. It was also the form originally used by Gorsedh Kernow, although they now use the new Standard Written Form.