In 1556 Y Mackay of Farr, progenitor of the Lords of Reay, refused to appear before the Queen Regent at Inverness, to answer charges made against him for depredations committed in Sutherlandshire; and she issued a commission to John, fifth Earl of Sutherland, to lay Mackay's country waste. Mackay, satisfied that he could not successfully oppose the Earl's forces in the field, pillaged and plundered another district of Sutherland. The Earl conveyed intelligence of how matters stood to John of Kintail, who, in terms of the bond of manrent entered into between them in 1545, despatched his son Kenneth with an able body of the clan to arrest Mackay's progress, which duty he performed most effectually. Meeting at Brora, a severe contest ensued, which terminated in the defeat of Mackay, with the loss of Angus MacIain Mhoir, one of his chief commanders, and many of his clan. Kenneth was thereupon, conjointly with his father, appointed by the Earl of Sutherland - then the Queen's Lieutenant north of the Spey, and Chamberlain of the Earldom of Ross [Sir Robert Gordon, p. 134.] - his deputies in the management of this vast property, at the same time placing them in possession of Ardmeanoch, or Redcastle, which remained ever since, until within a recent period, in the possession of the family, becoming the property of Kenneth's third son, Ruairidh Mor, first of the house of Redcastle, and progenitor of the family of Kincraig and other well-known branches. After this, Kintail seems to have lived in peace during the remainder of his long life. He died at his home at Inverchonan, in 1561, about eighty years of age. He was buried in the family aisle at Beauly. That he was a man of proved valour is fully established by the distinguished part he took in the battles of Flodden and Pinkie. The Earl of Cromarty informs us that, "in his time he purchased much of the Brae-lands of Ross, and secured both what he acquired and what his predecessors had, by well ordered and legal security, so that it is doubtful whether his predecessors' courage or his prudence contributed most to the rising of the family."