The Saxons had now been for four centuries in Britain, the older inhabitants of which—Celts like the Gauls and Irish—they had cruelly harassed, just as the Milesian Irish oppressed their Belgic predecessors, and as the Normans, in turn, will be found oppressing both Celt and Saxon in England and Ireland. Britain had been divided by the Saxon leaders into eight separate kingdoms, the people and princes of several of which were converted to Christianity in the fifth, sixth, and seventh century, though some of them did not receive the Gospel before the beginning of the eighth. The Saxons of Kent and the Southern Kingdoms generally were converted by missionaries from France or Rome, or native preachers of the first or second Christian generation; those of Northumbria recognise as their Apostles St. Aidan and St. Cuthbert, two Fathers from Iona. The Kingdom of Northumbria, as the name implies, embraced nearly all the country from the Humber to the Pictish border. York was its capital, and the seat of its ecclesiastical primacy, where, at the time we speak of, the illustrious Wilfrid was maintaining, with a wilful and unscrupulous king, a struggle not unlike that which Becket maintained with Henry II. This Prince, Egfrid by name, was constantly engaged in wars with his Saxon cotemporaries, or the Picts and Scots. In the summer of 683 he sent an expedition under the command of Beort, one of his earls, to ravage the coast of Leinster. Beort landed probably in the Boyne, and swept over the rich plain of Meath with fire and sword, burning churches, driving off herds and flocks, and slaughtering the clergy and the husbandmen. The piety of an after age saw in the retribution which overtook Egfrid the following year, when he was slain by the Picts and Scots, the judgment of Heaven, avenging the unprovoked wrongs of the Irish. His Scottish conquerors, returning good for evil, carried his body to Iona, where it was interred with all due honour.