However it fell out--all is obscure--Mar died in prison; while Albany, also a prisoner on charges of treasonable intrigues with the inveterate Earl of Douglas, in the English interest, escaped to France.
Douglas (1482) brought him to England, where he swore allegiance to Edward IV., under whom, like Edward Balliol, he would hold Scotland if crowned.

He was advancing on the Border with Edward's support and with the Duke of Gloucester (Richard III.), and James had gone to Lauder to encounter him, when the Earl of Angus headed a conspiracy of nobles, such as Huntly, Lennox, and Buchan, seized Cochrane and other favourites of James, and hanged them over Lauder Bridge.

The most tangible grievance was the increasing debasement of the coinage.

James was immured at Edinburgh, but, by a compromise, Albany was restored to rank and estates.
Meanwhile Gloucester captured Berwick, never to be recovered by Scotland.
In 1483 Albany renewed, with many of the nobles, his intrigues with Edward for the betrayal of Scotland.

In some unknown way James separated Albany from his confederates Atholl, Buchan, and Angus; Albany went to England, betrayed the Castle of Dunbar to England, and was only checked in his treasons by the death of Edward IV.