 In 1452 he too led a raid up the Great Glen, seizing Urquhart, and subsequently obtained a grant of the lands and castle of Urquhart for life.However, in 1462 John made an agreement with Edward IV of England against the Scottish King James III.When this became known to James in 1476, John was stripped of his titles, and Urquhart was turned over to an ally, the Earl of Huntly.