The historian
Norman Macdougall thought that the significance of the agreement was overplayed by earlier historians, such as
Andrew Lang, who described it as an attempt to "stab Scotland in the back with a Celtic dirk." Its consequence was an attack by the Earl of Ross on crown lands near Inverness in 1462 and 1463. The Scottish crown allied with Edward IV by the
treaty of York in 1464. In 1475, the English court revealed the existence of the 1462 agreement; John, the Earl of Ross, was consequently summoned for treason – including the acts of making leagues and bands with Edward IV and the banished Earl of Douglas. John was only able to calm matters by
quitclaiming
Ross (which at that time included
Skye). In 1491, in an attempt to get it back, his half-nephew launched the
Raid on Ross, which the Scottish king was then able to use as justification for abolishing the powerful
Lordship of the Isles itself. ==The Douglases and England==