For 10 points, identify this soldier who fought for Scottish independence around the turn of the fourteenth century.
He appointed Bishop Lamberton and established a covenant with France against England, which was dissolved during the revolt in Flanders. John de Menteith ultimately captured him some years after his triumph over William Heselrig at Lanark, as described by Blind Harry. His greatest victory occurred alongside Arthur Murray, when he defeated the Earl of Surrey's punitive force at Stirling Bridge. For 10 points, identify this soldier who fought for Scottish independence around the turn of the fourteenth century.
He appointed Bishop Lamberton and established a covenant with France against England, which was dissolved during the revolt in Flanders.
William {Wallace}