CERDIC (d. 534), founder of the West Saxon kingdom, is described as an ealdorman who in 495 landed with his son Cynric in Hampshire, where he was attacked at once by the Britons. Nothing more is heard of him until 508, when he defeated the Britons with great slaughter. Strengthened by fresh arrivals of Saxons, he gained another victory in 519 at Certicesford, a spot which has been identified with the modern Charford, and in this year took the title of king. Turning westward, Cerdic appears to have been defeated by the Britons in 520 at Badbury or Mount Badon, in Dorset, and in 527 yet another fight with the Britons is recorded. His last work was the conquest of the Isle of Wight, probably in the interest of some Jutish allies. All the sovereigns of England, except Canute, Hardicanute, the two Harolds and William the Conqueror, are said to be descended from Cerdic.
See Anglo-Saxon Chronicle, edited by C. Plummer (Oxford, 1892-1899); Gildas, De excidio Britanniae, edited by Th. Mommsen (Berlin, 1898); Nennius, Historia, Brittonum, edited by Th. Mommsen (Berlin, 1898); Bede, Historiae ecclesiasticae gentis Anglorum libri v., ed. C. Plummer (Oxford, 1896); E. Guest, Origines Celticae (London, 1883); J.R. Green, The Making of England (London, 1897).
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)