When Harold found himself at liberty, his ambition suggested casuistry sufficient to justify to him the violation of an oath, which had been extorted from him by fear, and which, if fulfilled, might be attended with the subjection of his native country to a foreign power. He continued still to practise every art of popularity; to increase the number of his partisans; to reconcile the minds of the English to the idea of his succession; to revive their hatred of the Normans; and by an ostentation of his power and influence, to deter the timorous Edward from executing his intended destination in favour of William. Fortune, about this time, threw two incidents in his way, by which he was enabled to acquire general favour, and to increase the character, which he had already attained, of virtue and abilities.
The Welsh, though a less formidable enemy than the Danes, had long been accustomed to infest the western borders; and after committing spoil on the low countries, they usually made a hasty retreat into their mountains, where they were sheltered from the pursuit of their enemies, and were ready to seize the first favourable opportunity of renewing their depredations. Griffith, the reigning prince, had greatly distinguished himself in those incursions; and his name had become so terrible to the English, that Harold found he could do nothing more acceptable to the public, and more honourable for himself, than the suppressing of so dangerous an enemy. He formed the plan of an expedition against Wales; and having prepared some light- armed foot to pursue the natives into their fastnesses, some cavalry to scour the open country, and a squadron of ships to attack the seacoast, he employed at once all these forces against the Welsh, prosecuted his advantages with vigour, made no intermission in his assaults, and at last reduced the enemy to such distress, that, in order to prevent their total destruction, they made a sacrifice of their prince, whose head they cut off and sent to Harold; and they were content to receive as their sovereigns two Welsh noblemen appointed by Edward to rule over them. The other incident was no less honourable to Harold.
Tosti, brother of this nobleman, who had been created Duke of Northumberland, being of a violent tyrannical temper, had acted with such cruelty and injustice, that the inhabitants rose in rebellion, and chased him from his government. Morcar and Edwin, two brothers, who possessed great power in those parts, and who were grandsons of the great Duke Leofric, concurred in the insurrection; and the former, being elected duke, advanced with an army to oppose Harold, who was commissioned by the king to reduce and chastise the Northumbrians. Before the armies came to action, Morcar, well acquainted with the generous disposition of the English commander, endeavoured to justify his own conduct. He represented to Harold, that Tosti had behaved in a manner unworthy of the station to which he was advanced, and no one, not even a brother, could support such tyranny without participating, in some degree, of the infamy attending it; that the Northumbrians, accustomed to a legal administration, and regarding it as their birth- right, were willing to submit to the king, but required a governor who would pay regard to their rights and privileges; that they had been taught by their ancestors, that death was preferable to servitude, and had taken the field, determined to perish rather than suffer a renewal of those indignities to which they had so long been exposed; and they trusted that Harold, on reflection, would not defend in another that violent conduct, from which he himself, in his own government, had always kept at so great a distance. This vigorous remonstrance was accompanied with such a detail of facts, so well supported, that Harold found it prudent to abandon his brothers cause; and returning to Edward, he persuaded him to pardon the Northumbrians, and to confirm Morcar in the government. He even married the sister of that nobleman [b]; and by his interest procured Edwin, the younger brother, to be elected into the government of Mercia. Tosti in rage departed the kingdom, and took shelter in Flanders with Earl Baldwin, his father-in-law. [FN [b] Order Vitalis, p. 492.]