Between 868 and 880 Bishop Swithulf was consecrated Bishop of Rochester.
Between 893 and 896 Bishop Swithulf died.
Anglo-Saxon Chronicle. 897. In the summer of this year went the army, some into East-Anglia, and some into Northumbria; and those that were penniless got themselves ships, and went south over sea to the Seine. The enemy had not, thank God, entirely destroyed the English nation; but they were much more weakened in these three years by the disease of cattle, and most of all of men; so that many of the mightiest of the king's thanes, that were in the land, died within the three years. Of these, one was Swithulf Bishop of Rochester, Ceolmund alderman in Kent, Bertulf alderman in Essex, Wulfred alderman in Hampshire, Elhard Bishop of Dorchester, Eadulf a king's thane in Sussex, Bernuff governor of Winchester, and Egulf the king's horse-thane; and many also with them; though I have named only the men of the highest rank. This same year the plunderers in East-Anglia and Northumbria greatly harassed the land of the West-Saxons by piracies on the southern coast, but most of all by the esks which they built many years before. Then King Alfred (age 48) gave orders for building long ships against the esks, which were full-nigh twice as long as the others. Some had sixty oars, some more; and they were both swifter and steadier, and also higher than the others. They were not shaped either after the Frisian or the Danish model, but so as he himself thought that they might be most serviceable. Then, at a certain turn of this same year, came six of their ships to the Isle of Wight; and going into Devonshire, they did much mischief both there and everywhere on the seacoast. Then commanded the king his men to go out against them with nine of the new ships, and prevent their escape by the mouth of the river to the outer sea. Then came they out against them with three ships, and three others were standing upwards above the mouth on dry land: for the men were gone off upon shore. Of the first three ships they took two at the mouth outwards, and slew the men; the third veered off, but all the men were slain except five; and they too were severely wounded. Then came onward those who manned the other ships, which were also very uneasily situated. Three were stationed on that side of the deep where the Danish ships were aground, whilst the others were all on the opposite side; so that none of them could join the rest; for the water had ebbed many furlongs from them. Then went the Danes from their three ships to those other three that were on their side, be-ebbed; and there they then fought. There were slain Lucomon, the king's reve, and Wulfheard, a Frieslander; Ebb, a Frieslander, and Ethelere, a Frieslander; and Ethelferth, the king's neat-herd; and of all the men, Frieslanders and English, sixty-two; of the Danes a hundred and twenty. The tide, however, reached the Danish ships ere the Christians could shove theirs out; whereupon they rowed them out; but they were so crippled, that they could not row them beyond the coast of Sussex: there two of them the sea drove ashore; and the crew were led to Winchester to the king, who ordered them to be hanged. The men who escaped in the single ship came to East-Anglia, severely wounded. This same year were lost no less than twenty ships, and the men withal, on the southern coast. Wulfric, the king's horse-thane, who was also viceroy of Wales, died the same year.