The Earl of Sutherland had been on friendly terms with Mackenzie, and appointed him as his deputy in the management of the Earldom of Ross, which devolved on him after the forfeiture. On one occasion, the Earl of Sutherland being in the south at Court, the Strathnaver men and the men of the Braes of Caithness took advantage of his absence and invaded Sutherland. An account of their conduct soon spread abroad, and reached the ears of the Chief of Kintail, who at once with a party of six hundred men, passed into Sutherland, where, the Earl's followers having joined him, he defeated the invaders, killed a large number of them, forced the remainder to sue for peace, and compelled them to give substantial security for their peaceful behaviour in future. Kintail was now a very old man. His prudence and sagacity well repaid the judicious patronage of the first King James, confirmed and extended by his successors on the throne, and, as has been well said by his biographer, secured for him "the love and respect of three Princes in whose reign be flourished, and as his prudent management in the Earldom of Ross showed him to be a man of good natural parts, so it very much contributed to the advancement of the interest of his family by the acquisition of the lands he thereby made; nor was he less commendable for the quiet and peace he kept among his Highlanders, putting the laws punctually in execution against all delinquents." Such a character as this, justly called Alastair Ionraic, or the just, was certainly well fitted to govern, and deserved to flourish in the age in which he lived. Various important events occurred during the latter part of his life, but as Kenneth, his brave son and successor, was the actual leader of the clan for many years before his father's death, and especially at the celebrated battle of Park, the leading battles and feuds in which the clan was engaged during this period will be dealt with in the account of that Baron.