Warwick and Clarence were completely successful in their plot. They secretly suborned a rebellion in Yorkshire, under Sir John Conyers, one of Warwick's relatives, who was aided by the Neville retainers, as well as by the discontented Lancastrians of the North. Conyers called himself "Robin of Redesdale," and gave himself out as the champion of the poor and the redresser of grievances--much as Cade had done fifteen years before. He beat the king's army at Edgecote Field, near Banbury, and then Warwick and Clarence appeared upon the scene and apprehended Edward at Olney. They beheaded Earl Rivers, the father of all the Woodvilles, and Herbert, Earl of Pembroke, the king's chief confidant. After keeping Edward some months in durance, they released him, on his undertaking to govern according to their desires (1469). [Sidenote: =Warwick driven from England.=] But the spirit of Edward always rose in times of trouble; he cast off his sloth, and plotted against the plotters. Taking advantage of an ill-planned Lancastrian rising in Lincolnshire, he raised a great army, and suddenly turned it against his disloyal brother and cousin. Warwick and Clarence were chased all across England, from Manchester to Dartmouth, and barely escaped with their lives by taking ship to France. [Sidenote: =He joins the Lancastrians.=] Furious at his failure, the King-maker resolved to sacrifice all his prejudices and predispositions to revenge. He met the exiled Queen Margaret at Angers, and proposed to her to restore Henry VI. to the throne, and make an end of the ungrateful Edward. After long doubting, Margaret resolved to take his offer, though she hated him bitterly, and never trusted him. To bind the alliance, Edward, Prince of Wales, the queen's young son, was married to Anne Neville, the earl's second daughter. [Sidenote: =Henry again king.=] Then Warwick and Margaret joined to foment a rising in England. The numerous clan of the Nevilles were prepared to follow their chief, and the surviving Lancastrians were still ready to risk themselves in a new plan of insurrection. In the autumn of 1470, Warwick and Clarence landed in Devonshire and raised the standard of the imprisoned Henry VI. Their success showed the deep roots of the earl's popularity, and the precarious nature of King Edward's power. Simultaneous risings broke out all over England, and Edward, betrayed by most of his supporters, had to take ship and fly to Flanders. Henry VI. was drawn from his dungeon, and was for a few months again King of England. [Sidenote: =Return of Edward.--Battle of Barnet.=]