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 peop ...

name derived from the Common Brittonic ''*Katuwellaunos'' (

Proto-Celtic Proto-Celtic, or Common Celtic, is the ancestral proto-language of all known Celtic languages, and a descendant of Proto-Indo-European. It is not attested in writing but has been partly reconstructed through the comparative method. Proto-Celti ...

*''Katu-welnā-mnos'') "The One Who (-mnos) Leads (welnā-) in Battle (katu-)". The same name belonged to the

Catuvellauni The Catuvellauni (Common Brittonic: *''Catu-wellaunī'', "war-chiefs") were a Celtic tribe or state of southeastern Britain before the Roman conquest, attested by inscriptions into the 4th century. The fortunes of the Catuvellauni and their ...

who lived in what is now Hertfordshire, one of the most powerful British polities in the

Late Iron Age The Iron Age is the final epoch of the three-age division of the prehistory and protohistory of humanity. It was preceded by the Stone Age (Paleolithic, Mesolithic, Neolithic) and the Bronze Age (Chalcolithic). The concept has been mostly appl ...

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 Cassivellaunus was a historical Celtic Britons, British military leader who led the defence against Caesar's invasions of Britain, Julius Caesar's second expedition to Britain in 54 BC. He led an alliance of tribes against Ancient Rome, Roman for ...

), 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 (reigned early 6th century), King of Gwynedd *

Cadwallon ap Cadfan Cadwallon ap Cadfan (died 634A difference in the interpretation of Bede's dates has led to the question of whether Cadwallon was killed in 634 or the year earlier, 633. Cadwallon died in the year after the Battle of Hatfield Chase, which Bede rep ...

(reigned early 7th century), King of Gwynedd * Cadwallon ab Owain (died ), prince of Deheubarth * Cadwallon ab Ieuaf (died 986), King of Gwynedd *

Cadwallon ap Gruffydd Cadwallon ap Gruffydd (c. 1097 – 1132) () was the eldest son of Gruffudd ap Cynan, king of Gwynedd. Early life Cadwallon was born in the village of Walesey in the county of Caernarvonshire in Wales. His mother was Angharad ferch Owain, the ...

(12th century), son of Gruffudd ap Cynan *

Cadwallon ap Madog Cadwallon ap Madog was the son of Madog ab Idnerth who had died in 1140, while Idnerth was a grandson of Elystan Glodrydd who had died in around 1010 and had founded a dynasty in the Middle Marches of Wales, in the area known as Rhwng Gwy a Hafren ...

(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