Ardtornish and Westminster
So far John had done rather well. He had defied the king and survived. He extended his power and influence from Inverness to the English border. Had he died at this point he might be well remembered in the annals of Clan Donald. But he now took a fatal step, the consequences of which were to betray the essential weakness of his character. In England the Yorkists under
Edward IV had chased the Lancastrian
Henry VI from the country. Henry took refuge in Scotland, where he was well-received. Edward at once sent the exiled earl of Douglas, the brother of the man murdered at Stirling, on a diplomatic mission to the Isles. At his court in the castle of Ardtornish John agreed to send his plenipotentiaries to
London. This was a dangerous move, for while John's predecessors had contacts with the English, they had never committed themselves too far. Moreover, the English had never made any real attempt to assist the Lordship when it was in difficulties with the crown of Scotland. It should have been perfectly clear that Edward was trying to create a diversion. Sadly for the Lord of the Isles, it was not.
In February 1462 John's representatives concluded an agreement once referred to as the Treaty of Westminster-Ardtornish, that envisaged nothing less than the conquest and partition of Scotland. John agreed to pay homage to Edward in return for his help in obtaining all of Scotland north of the Forth. The treaty is a remarkably vague document considering the risks John was prepared to take. It says absolutely nothing about the nature, scale and timing of English support. But for Edward it was a brilliant diplomatic coup. He achieved maximum results at minimum expense, laying out only as much bait as necessary to create a political disturbance in northern Scotland.
Even before the agreement was concluded the Islemen took to arms, advancing eastwards under the command of
Angus Og, John's illegitimate son. Once again Inverness was captured and the people of the north instructed to deny the authority of James III. Beyond this we know nothing from the sparse contemporary sources, not even how this rebellion was brought under control. It most certainly had the effect Edward desired; for the Scottish government, faced with rebellion in the north, and fearful of attack in the south, dropped the politically embarrassing Lancastrian connection. John, presumably now aware how worthless the Westminster agreement truly was, backed down, declaring his seizure of the Inverness customs had been illegal. No further action was taken against him-for the present.