In the year 867, a great conflict for the sovereignty of Northumbria was maintained between Osbert and Ella, the former having been expelled from his throne and the latter elected thereto in his stead. At this unhappy juncture, the Danish chieftains, Hinguar and Hubba, brought a powerful fleet into the Humber, and therewith passed their land forces over the river into Northumbria, directing the march of their principal forces upon York, and marking their track in blood and ashes. The common danger arrested the course of the internecine feud, and Osbert and Ella proposed to combine their forces for the defence of the capital. Before this junction could, however, be effected the Northmen fell upon York, and Osbert, without waiting for his ally, threw himself into the city, and attacked the advancing Danes. For a time the battle raged hotly. The banners were brought to the front, and the leaders fought gallantly beneath them, animating their followers by their example and exhortations. So fierce was the defence of the Northumbrians that the Danes were driven back, but only to again struggle forward through dust and blood to the devoted city. Osbert and his chieftains strove nobly to hold up against the heavy masses that bore down upon them with such determined energy. Again and again they cast themselves upon the steel-bound ranks of their enemies, only to be borne down in the press, before the descending swords, and lie beneath the feet that pressed forward and entered the city in triumph. Scarcely had Hubba and Hinguar established themselves, before Ella approached, and addressed himself to the storming of the walls. So fierce and stubborn was the onslaught, that his troops broke through the defences and penetrated the Danish lines. The Northman was never more to be feared than when at bay, with the sword above his head. The Danes sallied out, slew or drove out all the Northumbrians who had entered the city, and, engaging them in the open field, put Ella and the flower of his army to the sword. The day was fittingly concluded by a fiendish massacre of the citizens of York. In Saxon and Danish times Northumbria was continually invaded, and in the days of King Athelstan the famous battle of Brunanburgh was fought north of the Humber, and, if we may attach any importance to the speculations of some of our Yorkshire antiquaries, our favoured county was the scene of that desperate conflict. As a matter of fact, the exact locality of the battle has not yet been established on sufficient evidence, and no doubt our historians will continue to regard it as unascertained. II.--BATTLE OF STAMFORD BRIDGE. A.D. 1066.