As soon as the news of the disaster to the Earl of Mar, who commanded at Harlaw, reached the ears of the Duke of Albany, at the time Regent for Scotland, he set about collecting an army with which, in the following autumn, he marched in person to the north determined to bring the Lord of the Isles to obedience. Having taken possession of the Castle of Dingwall, he appointed a governor to it, and from thence proceeded to recover the whole of Ross. Donald retreated before him, taking up his winter quarters in the Western Islands. Hostilities were renewed next summer, but the contest was not long or doubtful, notwithstanding some little advantages obtained by the Lord of the Isles. He was compelled for a time to give up his claim to the earldom of Ross, to become a vassal of the Scottish Crown, arid to deliver hostages for his good behaviour in the future. Murdoch must have felt secure in his stronghold of Ellandonnan, and been a man of great prudence, sagacity, and force of character, when, in spite of the commands of his nominal superior - the Lord of the Isles - to support him in these unlawful and rebellious proceedings against the King and threats of punishment in case of refusal, he resolutely declined to join him in his desperate and treasonable adventures. He went the length of saying that even if his lordship's claims were just in themselves, they would not justify a rebellion against the existing Government; and he further informed him that, altogether independently of that important consideration, he felt no great incentive to aid in the cause of the representative of his grandfather's murderer. Mackenzie was in fact one of those prudent and loyal chiefs who kept at home in the Highlands, looking after his own affairs, the comfort of his followers, and laying a solid foundation for the future prosperity of his house, "which was so characteristic of them that they always esteemed the authority of the magistrate as an inviolable obligation."