Ceawlin "undertook government of West Saxons in 560 and reigned for 30 winters."
560. Ethelbert cam to the kingdom of Kent, and held it fifty three winters. In his day the holy Pope Gregory sent us baptism. And Columbia, the mass-priest, came to the Picts....
591. This year there was a great slaughter of Britons at Wanborough, Ceawlin was driven from his kingdom...