manifest Richard's dangerous popularity with the Commons. Richard of York, safely returned from Ireland in 1450, confronted Henry and was readmitted as a trusted advisor. Soon thereafter, Henry agreed to convene Parliament to address the calls for reform. When Parliament met, the demands could not have been less acceptable to Margaret: not only were both Edmund Beaufort and Suffolk impeached for criminal mismanagement of French affairs and subverting justice, but it was charged as a crime against Suffolk (now a duke) that he had antagonised the king against the Duke of York. Further, the demands for reform put forward included that the Duke of York be acknowledged as the first councillor to the king, and the Speaker of Commons, perhaps with more fervour than wisdom, even proposed Richard, Duke of York, be recognised as heir to the throne. Within a few months, however, Margaret had regained control of Henry, Parliament was dissolved, the incautious Speaker thrown in prison, and Richard of York retired to Wales for the time being. In 1457, the kingdom was again outraged when it was discovered that Pierre de Brézé, a powerful French general and an adherent of Margaret, had landed on the English coast and burnt the town of Sandwich. As leader of a French force of 4,000 men from Honfleur, he aimed at taking advantage of the chaos in England. The mayor, John Drury, was killed in this raid. It thereafter became an established tradition, which survives to this day, that the Mayor of Sandwich wears a black robe mourning this ignoble deed. Margaret, in association with de Brézé, became the object of scurrilous rumours and vulgar ballads. Public indignation was so high that Margaret, with great reluctance, was forced to give the Duke of York's kinsman Richard Neville, 16th Earl of Warwick, a commission to keep the sea for three years. He already held the post of Captain of Calais. Leader of Lancastrian faction Hostilities between the rival Yorkist and Lancastrian factions soon flared into armed conflict. In May 1455, just over five months after Henry VI recovered from a bout of mental illness and Richard of York's protectorship had ended, Margaret called for a Great Council from which the Yorkists were excluded. The Council called for an assemblage of the peers at Leicester to protect the king "against his enemies". York apparently was prepared for conflict and soon was marching south to