Culmin, King of Dumnonia
(Welsh-Cylfyn, Latin-Colmanus, English-Coleman)
Culmin succeeded his father, Petroc, and ruled in the late 7th century. It was probably during his reign that the Dumnonians made a push against Wessex in 658. Unfortunately, they were defeated at the Battle of Peonna (Penselwood, Wilts) and the Dumnonian border was set at the River Parrett. Cenwalh of Wessex was thus encouraged to try his luck further. In 661, he defeated the Dumnonians at the Battle of Posentesburh (Posbury, Devon). Having conquered the eastern portion of Culmin's kingdom, Cenwalh introduced the Somerton-settlers, and Saxons began moving in as far west as Crediton.
Generally considered legendary.