When she landed with her son in Essex in September 1326, she was at once joined by Henry of Lancaster, the heir of Earl Thomas, and most of the baronage of the eastern counties. Even the king's half-brother, the earl of Norfolk, rallied to her banner. Edward and the Despensers, after trying in vain to raise an army, fled into the west. They were all caught by their pursuers; the two Despensers were executed--the one at Bristol, the other at Hereford. Several more of Edward's scanty band of friends--the earl of Arundel and the bishop of Exeter and others--were also slain. Their unhappy master was forced to abdicate on the 20th of January 1327, his fourteen-year old son being proclaimed king in his stead. He was allowed to survive in close prison some eight months longer, but when his robust constitution defied all attempts to kill him by privations, he was murdered by the orders of the queen and Mortimer at Berkeley Castle on the 21st of September. Regency of Isabella and Mortimer. The three years regency of Isabella, during the minority of Edward III., formed a disgraceful episode in the history of England. She was as much the tool of Mortimer as her husband had been the tool of the Despensers, and their relations became gradually evident to the whole nation. All posts of dignity and emolument were kept for their personal adherents, and a new and formidable dignity was conferred on Mortimer himself, when he was made both justiciar of the principality of Wales, and also earl of March, in which lay both his own broad lands and the estates of Despenser and Arundel, which he had shamelessly appropriated. It is surprising that the adulterous pair succeeded in maintaining themselves in power for so long, since the ignominy of the situation was evident. They were even able to quell the first attempt at a reaction, by seizing and beheading Edmund, earl of Kent, the late king's half-brother, who was betrayed while organizing a plot for their destruction. The one politic act of Mortimer's administration, the conclusion of a permanent peace with Scotland by acknowledging Bruce as king (1328), was not one which made him more popular. The people called it "the shameful peace of Northampton," and firmly believed that he had been bribed by the Scots. Edward III.