Kent was probably the part of Britain first invaded by the Northmen, and certainly the first actually subdued and settled. It was the only independent state established and maintained by the followers of Hengist, the Jutes, a people who did not contribute largely to the conquest of Britain, neither did they occupy any considerable portion of the conquered country; but what they did retain became and still remains intensely Teutonic, and their early supremacy, during the conversion of the English to Christianity, is marked by the fact that their chief city became, as it has since remained, the ecclesiastical metropolis of the island. Dover was a considerable Jutish port, and before long was regarded as the key of England. Very probably the inner earthworks still to be seen, though too much altered to be recognisable, were the work of this people, and the collegiate church of St. Martin, founded in the town by Wihtræd, King of Kent (690–725), is said to have been removed by him from the Castle Hill. In the time of Alfred, Dover was placed in the bailiwick of Stouting, and the lathe of St. Augustine. Its history, however, properly so called, does not begin till the reign of the Confessor, whose charter to the Cinque Ports, which John is said to have inspected, was confirmed by many later kings. In September, 1051, Eustace, Count of Boulogne, brother-in-law to King Edward, paid a visit to the English Court at Gloucester, and returning through Canterbury there rested his escort, and thence went to Dover on his way homeward. Before entering the town, he and his men put on their coats of mail, and attempted to take free quarters in the houses of the burghers. This led to a fight in which much blood was shed, and the Count finally, being expelled the town, returned to Gloucester with his complaint. The subsequent tale has often been told. Godwin, then Earl of Kent, took part with his injured countrymen, and withstood the strong Norman interest about the king, and was, in consequence, banished. Godwin proposed, says Malmesbury, “Ut magnates illius castelli blande in curia regis de seditione convenirentur.” Whether “castellum” can be taken for more than the fortified town is uncertain. It is not probable that Eustace would have ascended to the castle, since he sought quarters in the town. On the whole this passage can scarcely be taken to prove the existence at that time of a regular castle on the hill. Nevertheless, the existence of such a castle at that time is exceedingly probable, for in 1064–65 Harold, says William of Poitiers, swore to Duke William that, on the death of the Confessor, “se ... traditurum interim ipsius militum custodiæ castrum Doveram, studio atque sumptu suo communitum, item per diversa loca illius terræ alia castra.” Eadmer is more precise. In his account Duke William insists, “et insuper castellum Dofris cum puteo aquæ ad opus meum te facturum.” Malmesbury says, “Castellum Doroberniæ (Dubris) quod ad jus