“Henry de Percy was the third son of Henry Lord Percy, by Eleanor, daughter of John Earl of Warren and Earl of Surrey, and succeeded to the barony upon the death of his brother John de Percy, who died under age soon after the year 1272, at which time he appears to have been very young. The first circumstance recorded of him is, that, in the 15th Edward I., being then in ward, on the King’s expedition into Wales, he was acquitted of 120_l._ required from him for scutage. In the 22d Edward I. 1294, he made proof of his age, obtained livery of his lands, and was summoned to attend the King into Gascony; and in March 1296, having accompanied Edward in his invasion of Scotland, he received the honour of knighthood before Berwick. He was present at the battle of Dunbar, and was soon afterwards appointed Governor of Galloway and Aire in Scotland; and in 1297, being with Lord Robert Clifford, commander for the King of England in the eastern parts of Scotland, they were appointed to receive Margery, daughter of Robert Brus Earl of Carreck, as an hostage for his fidelity to Edward. About the same time he was sent by the Earl Warren, then General of all the English army beyond the Trent, with the forces at Carlisle into Scotland; and having entered Annandale with 300 men-at-arms, and 40,000 foot, about the 10th August he proceeded to Aire, where he endeavoured to persuade the inhabitants of Galloway to submit. Finding that a party of Scots were on their route to oppose him, he marched towards them; but from the inferiority of their numbers, they surrendered upon condition of being pardoned. “In the 26th Edward I., Lord Percy was again in the wars of Scotland, in which year he obtained a grant of the lands forfeited by Ingelrom de Umfreville; and in the following year he was present at the siege of Carlaverock--a fact unnoticed by either of the writers just mentioned--when he must have been about forty-two years of age. The poet alludes to his determined hostility against the Scots, which feeling appears to have been inherited by his descendants, and describes him as the ‘nevou’ of the Earl Warren, which, like the word ‘nepos,’ seems to have been used for grandson as well as nephew, he being the son of Eleanor, the daughter of that nobleman. In February, 28th Edward I., 1301, he was a party to the letter from the Barons to Pope Boniface, wherein he is styled ‘Lord of Topclive;’ and in the 34th Edward I., was again sent into Scotland, to oppose Robert Bruce, against whom he valiantly defended Kenteir. In the 35th Edward I., he was a party to the treaty of peace with Scotland.