or ÆTHELMARE, earl of Cornwall and Devonshire, in the reign of King Edgar. It is not known of what family he was. His authority and riches were great, and so also in appearance was his piety. He founded the abbey of Cerneil, in Dorsetshire; and had so great a veneration for Eadwald, the brother of St Edmund the Martyr, who had lived a hermit in that country, near the Silver Well, as they called it, that with the assistance of Archbishop Dunstan, he translated his relics to the old church of Cerneil. In 1016, when Canute, the son of Sweyn, invaded England, and found himself stoutly opposed by that valiant Saxon prince Edmund Ironside, the son of Æthelred, this Earl Ailmer, with that arch traitor Eadric Streon, earl of Mercia, and Earl Algir, joined the Dane against their natural prince, which was one great cause of the Saxons ruin. He did not long survive this; and we find mentioned in history only one son of his, whose name was Æthelward, earl of Cornwall, who followed his father's maxims, and was properly rewarded for it. For in 1018, Canute reaping the benefit of their treasons, and perceiving that the traitors were no longer useful, he caused the infamous Eadric Streon, and this Earl Æthelward, to be both put to death.