At this time he gave to the above-mentioned Peada, son to King Penda, because he was his kinsman, the kingdom of the Southern Mercians,(447) consisting, as is said, of 5,000 families, divided by the river Trent from the Northern Mercians, whose land contains 7,000 families; but Peada was foully slain in the following spring, by the treachery, as is said, of his wife,(448) during the very time of the Easter festival. Three years after the death of King Penda, the Mercian chiefs, Immin, and Eafa, and Eadbert, rebelled against King Oswy, setting up for their king, Wulfhere,(449) son to the said Penda, a youth whom they had kept concealed; and expelling the ealdormen of the foreign king, they bravely recovered at once their liberty and their lands; and being thus free, together with their king, they rejoiced to serve Christ the true King, for the sake of an everlasting kingdom in heaven. This king governed the Mercians seventeen years, and had for his first bishop Trumhere,(450) above spoken of; the second was Jaruman;(451) the third Ceadda;(452) the fourth Wynfrid.(453) All these, succeeding each other in order under King Wulfhere, discharged episcopal duties to the Mercian nation. Chap. XXV. How the question arose about the due time of keeping Easter, with those that came out of Scotland.(454) [664 A.D.] In the meantime, Bishop Aidan being taken away from this life, Finan, who was ordained and sent by the Scots, succeeded him in the bishopric, and built a church in the Isle of Lindisfarne, fit for the episcopal see; nevertheless, after the manner of the Scots, he made it, not of stone, but entirely of hewn oak, and covered it with reeds; and it was afterwards dedicated in honour of the blessed Peter the Apostle, by the most reverend Archbishop Theodore. Eadbert,(455) also bishop of that place, took off the thatch, and caused it to be covered entirely, both roof and walls, with plates of lead.