John D. Carrick, Life of Sir William Wallace of Elderslie…
“ The hostility which he had excited in the breast of Edward by his conduct in Scotland, as well as by his invasion of England, gave him every reason to dread the revenge of that haughty and crafty potentate; while the vacillating character of a great proportion of the nobility—joined to that inextinguishable jealousy which existed against him in the minds of some of the most powerful families—made it both desirable and prudent to look out for a place where, in the decline of life, he might be secure from the attempts of his country’s enemies, as well as the machinations of his own. ”
