Constantine (/ˈkɒnstəntiːn/, Welsh: Cystennin, fl. 520–523) was a 6th-century king of Dumnonia in sub-Roman Britain, who was remembered in later British...

Constantine I of Georgia Constantine II of Georgia Constantine I of Imereti Constantine Mavrocordatos Constantine Ypsilantis Constantine (Briton), king in sub-Roman...

Britons ask the King of Brittany (Armorica), Aldroenus, descended from Conan, to rule them. However, Aldroenus instead sends his brother Constantine to...

Constantine III (Latin: Flavius Claudius Constantinus; died shortly before 18 September 411) was a common Roman soldier who was declared emperor in Roman...

Constantine I (27 February c. 272 – 22 May 337), also known as Constantine the Great, was a Roman emperor from AD 306 to 337 and the first Roman emperor...

The Britons (*Pritanī, Latin: Britanni), also known as Celtic Britons or Ancient Britons, were an indigenous Celtic people who inhabited Great Britain...

Uthyr Bendragon), also known as King Uther, was a legendary King of the Britons and father of King Arthur.: 253  A few minor references to Uther appear...

Mordred his heir, but on the advice of the Britons who did not want Mordred to rule, he later made Constantine his heir; this led to the war in which Arthur...

have combined earlier Welsh tales of Myrddin and Ambrosius, two legendary Briton prophets with no connection to Arthur, to form the composite figure that...

Estoire des Engleis (1134–1140), mentions Arthur and his sword: "this Constantine was the nephew of Arthur, who had the sword Caliburc" ("Cil Costentin...