The invasion from Scotland afforded Henry another pretext for raising more money. He summoned a Parliament in the February of 1497, to which he uttered bitter complaints of the inroad and devastations of the Scots; of the troubles created by the impostor, and the manifold insults to the crown and nation. All this was now apparently blown over; but Parliament gratified the king by voting £120,000, together with two-fifteenths. Happy in the prospect of such supplies, Henry recked little of Warbeck or the Scots; but the tax roused the especial wrath of the Cornish people, who, knowing that the king only wanted to add their money to his already immense and useless hoards, wanted to know what they had to do with inroads of the Scots, who were never likely to come near them, and who had retired of themselves without so much as waiting for the sight of an army. This excitement of the brave and industrious, but hard-living Cornish men was fanned into a flame by Michael Joseph, a farrier of Bodmin, and one Thomas Flammock, an attorney, who assured the people that the tax was totally illegal, though voted by Parliament; for that the northern counties were bound by the tenures of their estates to defend that frontier; and that if they submitted to the avarice of Henry and his ministers there would be no end to it.
Flammock told them that they must deliver the king a petition, seconded by such numbers as to give it authority; but at the same time he assured them that to procure the concurrence of the rest of the kingdom they must conduct themselves with all order, and refrain from committing any injuries to person or property, demonstrating that they had only the public good in view. Armed with bills, bows, axes, and other country weapons that they could command, they marched into Devonshire 16,000 strong, and called on the people to accompany them, and demand the heads of Archbishop Morton and Sir Reginald Bray, who were declared to be the advisers of the obnoxious impost. At Taunton they made an example of an insolent and overbearing commissioner of the tax of the name of Perin. At Wells they were joined by Lord Audley, a man of an ancient family, but said to be of a vain and ambitious character.
Proud of having a nobleman at their head, they marched through Salisbury and Winchester into Surrey, and thence to Kent, the people of which, Flammock told them, had in all ages been noted for their independence and patriotism, and were sure to join them. They pitched their camp on Blackheath, near Eltham, but not a man joined them. The people of Kent had their causes of complaint; but they had lately shown what was their spirit by repelling Perkin Warbeck, and they were too enlightened to join in the expedition.
Henry had now received the new levies raised to oppose any further motion of the Scots, and he sent them forward to attack and disperse the rebels. He always regarded Saturday as his fortunate day; therefore, on Saturday, the 22nd of June, 1497, he gave the order for the attack. He divided his forces into three divisions. The first, under Lord Daubeney, pushed forward to attack the insurgents in front; the second, under the Earl of Oxford, was to take a compass, and assail them in the rear; and the king himself took post with the third division in St. George's Fields, to secure the city. To throw the insurgents off their guard, he had given out that he should not take the field for some days; and to give probability to this notion, he did not send out his advanced forces till the latter part of the day. Lord Daubeney beat an advanced guard of the rebels from Deptford Bridge, and before the main body was prepared to receive him, he charged them with fury. Though they were brave men, and 16,000 strong, thus taken at advantage, and naturally ill-disciplined, ill-armed, and destitute of cavalry and artillery, they were soon broken and compelled to fly. Two thousand of them were slain, and 1,500 made prisoners. The prisoners Henry gave up to the captors, who allowed them to ransom themselves for a few shillings each.
Lord Audley, Flammock, and Joseph only were executed. The peer was beheaded, the commoners were hanged; and Joseph seemed to glory in the distinction, saying he should figure in history. Henry on this occasion displayed great clemency, which some have ascribed to his desire to make a good impression on the Cornish people; others for joy that Lord Daubeney had escaped, for at one time he was surrounded by the enemy but was soon rescued. But the most probable reason was that assigned by Lord Bacon:—"That the harmless behaviour of this people that came from the west of England to the east, without mischief almost, or spoil of the country, did somewhat mollify him, and move him to compassion; or, lastly, that he made a great difference between people that did rebel upon wantonness, and them that did rebel upon want."
James of Scotland seized on the opportunity created by the Cornish insurrection to make a fresh inroad into England. He laid siege to the castle of Norham, and plundered the country round. Henry despatched the Earl of Surrey, with an army of 20,000 men, to drive back the Scots, and punish them by carrying the war of devastation into their country. As Surrey advanced, James retired, and Surrey, following him across the Tweed, took and demolished the little castle of Ayton, ravaged the borders, and returned to Berwick. These useless and worse than useless raids, with no hope of permanent advantage on either side, but only of mischief to the unoffending inhabitants on both, were worthy only of the most savage and unenlightened times. The spies of Henry, however, soon informed him that James was really sick of the war, and he repeated the offer made before of the hand of his daughter Margaret. This he made through the Spanish ambassador, Don Pedro d'Ayala, who came forward as a friendly mediator, thus sparing both kings the humiliation of making the first move. D'Ayala found James quite disposed for peace, but in a somewhat cavalier humour as to the terms. By the advice of D'Ayala, commissioners were appointed to meet at Ayton, where, under the management of Fox, Bishop of Durham, on the part of England, a truce was agreed upon to last for the lives of the two kings, and a year after the death of the longer liver. Though agreed upon, this important truce was not ratified for some years afterwards.
Meantime, James privately admonished Warbeck to quit the kingdom, as he could no longer assist him, and his presence would only tend to endanger the truce. Warbeck is said to have received this intimation with much true dignity and good feeling. He thanked the king for the great effort he had made on his account, for all the honours and favours that he had conferred upon him, and for which he declared he should ever remain deeply grateful. A vessel was prepared for his departure at Ayr, and every comfort was provided for his accommodation which James could have offered to the true prince. His beautiful and accomplished wife would not be left behind—a proof that she was really attached to him, whatever she might think of his pretensions. She quitted rank, fortune, a high position in the Scottish Court, to embrace with him a homeless life and a dark prospect. Flanders was closed to Perkin by the fresh league betwixt that country and England. Ireland was a more than dubious resort, yet thither he turned his prow, and landed at Cork on the 30th of July, 1497, with about 100 followers. The attempt to rouse again the enthusiasm of Ireland was vain; but at this juncture the last gleam of Warbeck's waning fortune seemed to fall upon him.
The Cornish rebels, let off so easily by Henry, had returned to their own county, proclaiming by the way that the king had not dared to put them to death because the whole of his subjects were in the same state of discontent. The people of Cornwall and Devon, reassured by this, again took up arms against the commissioners, who were still collecting the tax with great severity, and, it is said, despatched a message to Warbeck to come over and head them. On the 7th of September, 1497, he accordingly landed at Whitsand Bay, with four or five small barques, and his 100 fighting men. Being joined by 3,000 of the insurgents at Bodmin, he issued a proclamation similar to his former one. Bodmin was the native place of Michael Joseph, their great orator and leader, and the people there were burning to revenge his death. Warbeck set out on his march towards Devonshire, and thousands of those who had lost friends and relations in the bloody battle of Blackheath joined him on the way. He sent his wife to Mount St. Michael for security, and directing his course towards Exeter, he invested that city on the 17th of September with a rude, wild force of about 10,000 men. He announced himself as Richard IV. of England, and called on the inhabitants to surrender; but, having sent notification of his approach to King Henry, they determined to defend themselves, if needful, till succour arrived.