Thomas of Lancaster, who had refused to join in the late campaign, took advantage of its results to place the king once more in complete tutelage. His household was dismissed, he was bidden to live as best he could on an allowance of £10 a day, and all his ministers and officials were changed. For more than three years Lancaster practically reigned in his cousin's name; it was soon found that the realm got no profit thereby, for Earl Thomas, though neither so apathetic nor so frivolous as Edward, was not a whit more competent to conduct either war or domestic administration. The Scots swept everything before them, ravaging the north at their will, and capturing Berwick. They even made a great expedition to Ireland, where Bruce's brother Edward was proclaimed king by the rebellious Celtic septs, and rode across the whole island, exterminating the Anglo-Irish population in many districts (1315-1317). But the colonists rallied, and cut to pieces a great Irish army at Athenry (1316), while in the next year Roger Mortimer, a hard-handed baron of the Welsh march, crossed with reinforcements and drove back Edward Bruce into the north. Resuming his advance after a space, the rebel king was routed and slain at Dundalk (Oct. 14, 1318) and the insurrection died out. But it had had the permanent result of weakening the king's grip on the north and west of Ireland, where the Englishry had been almost exterminated. From this time forth until the reign of Henry VIII. the limit of the country in full subjection to the crown was always shrinking, and the Irish chiefs of the inland continued to pay less and less attention to orders issued from Dublin or London.