This Earl William had issue three sons: to wit, John, who died young; William, and Aymer. “William was lord of Montygnac and Belluc; and in the 7th Edw. I. did oblige himself, on the behalf of John, Lord <g>Visci</g>, who had married Mary, the sister of Hugh de Lezinian (Lusignan), Earl of <g>March</g>, for the repayment of two thousand five hundred pounds _Tournois_, in case she should die without issue. After which, being with Gilbert, Earl of Gloucester, in a skirmish which he had with the <g>Welsh</g>, near Llantipowhir, was there slain in his father’s lifetime.” So that <g>Aymer</g> de Valence, the third son--a name of great celebrity--succeeded to the earldom of Pembroke. He attended the King in the expedition made into Flanders; and the same year was assigned one of the commissioners to ratify the agreement betwixt the King and Florence, Earl of Holland, touching those auxiliaries which he was to have from that Earl in his present wars; as also one of the ambassadors sent to treat of truce betwixt King Edward and the King of <g>France</g>. He next attended the King two years in his wars in Scotland; and was then sent ambassador to treat with those from the King of France, touching a peace with the Scots. Two years after this he was again in Scotland; and the same year (33d Edw. I.) he had license to go beyond sea on his own occasions. On his return he obtained a grant from the King, of the castles of Selkirk and Troquair in Scotland; also of the borough of Peebles, to hold by the service of one knight’s fees; likewise of the whole forest of Selkirk in fee-farm, paying a hundred and thirty pounds per annum; and to be sheriff there [as Sir Walter Scott was in our own times, though with very different powers]; with authority to build towns, churches, castles, and other fortifications; as also for free warren, and power to _deafforest_ and make parks therein at his own pleasure. Shortly after which he made a “pile”[375] at Selkirk, and placed a garrison therein. <g>Next</g> year he was sent, as Warden of the Marches of Scotland, toward Berwick-upon-Tweed; and being thereupon made the King’s Lieutenant, and Captain-General of the soldiery--horse and foot--for the defence of those parts against Robert Bruce, Earl of Carrick, and his complices, he had an assignation of two hundred pounds in part of his wages, to be paid to him by John de Sandale, Chamberlain of Scotland.--[Chronicle.]