Cadwallon is a

Welsh Welsh may refer to: Related to Wales * Welsh, referring or related to Wales * Welsh language, a Brittonic Celtic language spoken in Wales * Welsh people People * Welsh (surname) * Sometimes used as a synonym for the ancient Britons (Celtic peopl ...

name derived from the

Common Brittonic Common Brittonic ( cy, Brythoneg; kw, Brythonek; br, Predeneg), also known as British, Common Brythonic, or Proto-Brittonic, was a Celtic language spoken in Britain and Brittany. It is a form of Insular Celtic, descended from Proto-Celtic, a ...

''*Katuwellaunos'' ( Proto-Celtic *''Katu-welnā-mnos'') "The One Who (-mnos) Leads (welnā-) in Battle (katu-)". The same name belonged to the Catuvellauni who lived in what is now

Hertfordshire Hertfordshire ( or ; often abbreviated Herts) is one of the home counties in southern England. It borders Bedfordshire and Cambridgeshire to the north, Essex to the east, Greater London to the south, and Buckinghamshire to the west. For govern ...

, one of the most powerful British polities in the Late Iron Age who led the resistance against the Romans in 43 CE and possibly against Caesar in 55 and 54 BCE as well. ''Cadwallon'' is not to be confused with ''Caswallon'', which derives from ''*Kađđi-welnā-mnos'' (the same name as Cassivellaunus), meaning "The Passionate Leader". Note that in Cornish, both ''Katuwellaunos''(/Catuvellaunus) and ''Kađđiwellaunos''(/Cassivellaunus) give the form Kaswallon, which adds to the confusion. Cadwallon may refer to: *

Cadwallon Lawhir ap Einion Cadwallon ap Einion (c. 460-517 or 534), usually known as Cadwallon Lawhir ('Long Hand') and also called Cadwallon I by some historians, was a Wales, Welsh ruler around 500. Cadwallon was the son of Einion Yrth and Prawst ferch Deithlyn. He is oft ...

(reigned early 6th century), King of Gwynedd * Cadwallon ap Cadfan (reigned early 7th century), King of Gwynedd *

Cadwallon ab Owain __NOTOC__ Owain ap Hywel (died ) was king of Deheubarth in south Wales and probably also controlled Powys. Owain was one of the three sons of King Hywel the Good. Upon Hywel's death in 948, Owain, Rhodri, and Edwin divided his lands among ...

(died ), prince of Deheubarth * Cadwallon ab Ieuaf (died 986), King of Gwynedd * Cadwallon ap Gruffydd (12th century), son of Gruffudd ap Cynan * Cadwallon ap Madog (12th century), ruler of Maelienydd * ''Cadwallon'' (role-playing game), a 2006 game published by Rackham * Cædwalla (c. 659 – 689), King of Wessex (''Cædwalla'' is the Old English spelling of ''Cadwalla'' (< Brythonic ''*Katuwallios''), an alternative form of the same name.)

See also