12. =Eadwine's Supremacy.=--Eadwine's immediate kingship did not reach further south than the Humber and the Dee. But before =625= he had brought the East Angles and the kingdoms of central England to submit to his over-lordship, and he hoped to make himself over-lord of the south as well, and thus to reduce all England to dependence on himself. In =625= he planned an attack upon the West Saxons, and with the object of winning Kent to his side, he married AEthelburh, a sister of the Kentish king. Kent was still the only Christian kingdom, and Eadwine was obliged to promise to his wife protection for her Christian worship. He was now free to attack the West Saxons. In =626=, before he set out, ambassadors arrived from their king. As Eadwine was listening to them, one of their number rushed forward to stab him. His life was saved by the devotion of Lilla, one of his thegns, who threw his body in the way of the assassin, and was slain by the stroke intended for his lord. After this Eadwine marched against the West Saxons. He defeated them in battle and forced them to acknowledge him as their over-lord. He was now over-lord of all the English states except Kent, and Kent had become his ally in consequence of his marriage. 13. =Character of the later Conquests.=--Eadwine's over-lordship had been gained with as little difficulty as AEthelberht's had been. The ease with which each of them carried out their purpose can only be explained by the change which had taken place in the condition of the English. The small bodies of conquerors which had landed at different parts of the coast had been interested to a man in the defence of the lands which they had seized. Every freeman had been ready to come forward to defend the soil which his tribe had gained. After tribe had been joined to tribe, and still more after kingdom had been joined to kingdom, there were large numbers who ceased to have any interest in resisting the Welsh on what was, as far as they were concerned, a distant frontier. Thus, when Ceawlin was fighting to extend the West Saxon frontiers in the valley of the Severn, it mattered little to a man whose own allotted land lay on the banks of the Southampton Water whether or not his English kinsmen won lands from the Welsh near Bath or Gloucester. The first result of this change was that the king's war-band formed a far greater proportion of his military force than it had formed originally. There was still the obligation upon the whole body of the freemen to take arms, but it was an obligation which had become more difficult to fulfil, and it must often have happened that very few freemen took part in a battle except the local levies concerned in defending their own immediate neighbourhood. A military change of this kind would account for the undoubted fact that the further the English conquest penetrated to the west the less destructive it was of British life. The thegns, or warriors personally