850. Ealdorman Ceorl of Devon defeats the Vikings
The Anglo-Saxon Chronicle notes that Ealdorman Ceorl and the men of Devon fought against the Vikings at Wicganbeorg (unidentified, but presumably in Devon), and defeated them. Ceorl was an ealdorman throughout the 840s, witnessing charters in 840 and 846 (S 290 and 298, in which he has the Latin title princeps; he also appears in two dubious charters of 844, S 294 and 322). It may have been the band defeated by Ceorl which moved around to the east coast and took up winter quarters at Thanet (q.v.).