The Earl of Mar and his brother, Lord Grange, were now the two most considerable men in Scotland. Lord Grange had been made Lord of Session in 1707, and afterwards Lord Justice Clerk, during the three last years of Queen Anne's reign. His character presents traits even more repulsive and more dangerous than the time-serving and duplicity of the Earl of Mar. Lord Grange was one of those men whom the honest adherents to either party would, doubtless, gladly have turned over to the other side. His abilities, if we judge of the high appointments which he held, must have been eminent; but he was devoid of all principle, and was capable, if the melancholy and extraordinary history of his unhappy wife be true, of the darkest schemes. It would be difficult to reconcile, in any other man, the discrepancy of Lord Grange's real opinions and of his subsequent efforts to restore the House of Stuart; but, in a brother of the Earl of Mar, the difficulty ceases, and all hopes of consistency, or rather of its origin, sincerity, vanish. Lord Grange is declared to have been a "true blue republican, and, if he had any religion, at bottom a Presbyterian;" yet he was deeply involved in transactions with the Chevalier and his friends.[60] Lord Grange was united to a lady violent in temper, of a dauntless spirit, and a determined Hanoverian. Their marriage had been enforced by the laws of honour, and was ill-omened from the first; therefore, where respect has ceased, affection soon languishes and expires. The daughter of Cheisly of Dalry, a man of uncontrolled passions, who shot Sir George Lockhart, one of the Lords of Session, for having decided a law-suit against him, Mrs. Erskine of Grange, commonly called Lady Grange, inherited the determined will of her father. It was said that she had compelled Lord Grange to do her justice by marrying her, and "had desired him to remember, by way of threat, that she was Cheisly's daughter." For this menace she suffered in a way which could only be effected in a country like Scotland at that period, and among a people held in the thraldom of the clans. Her singular history belongs to a later period in the annals of those events in which so much domestic happiness was blasted, never to be recovered.[61] With his brother, Lord Mar was in constant correspondence, during his own residence in London; and although Lord Grange was skilful enough to conceal his machinations, and to retain his seat on the bench as a Scottish judge, there is very little reason to doubt his secret co-operation in the subsequent movements of the Earl.