Shortly after his coronation, René von Anjou entered into negotiations with the Crown of England and attempted to exchange a life alliance and a twenty-year truce in exchange for the cession of the territory of Maine to Anjou, held by the English, and Henry`s agreement to renounce his claim to Anjou.  Eventually, the agreement ended without an alliance with Anjou and with the loss of Maine.  Rumors that the Maine concession was part of Margaret`s marriage agreement, although false, circulated and were repeated by chroniclers. Margarete, together with Heinrich, corresponded closely with Charles VIII with regard to the agreement and tried to play the role of mediator. In exchange, Warwick`s youngest daughter married Prince Edward Island. The young couple were appointed on 25 July in the cathedral of Angers officially engaged and married in December 1470, after which this affair seemed very healthy – the invasion of Warwick succeeded, Henry was back on his throne and Edward IV was in exile in Flanders. Warwick`s ally in his revolts, Edward`s brother George, Duke of Clarence, was to become the Duke of York (replacing his brother). He was also recognized as heir to the throne when the Lancaster dynasty failed, although that placed him behind Prince Edward Island, all the heirs he could produce, and probably the Beauforts. Louis XI of France decided to organize a reconciliation between Warwick and his bitter enemy, Margaret of Anjou. Louis hoped that an England of Lancaster dominated by Warwick would be decreed with France, which would allow him to concentrate on control of Brittany and Burgundy. Both sides probably saw in this agreement their best chance of success. Warwick had been driven out of England and pushed back to Calais, the base he had used extensively in 1459-60.
Queen Margarete had seen Edward IV establish himself on the throne of his exile in France. Her husband was in prison in the tower and her son Edward of Prince Edward grew up outside his kingdom. Michael Hicks claims that Clarence`s loyalty to Edward IV was weakened when he lost Tutbury in the division of Warwick`s inheritance in 1473. Enigmatically, however, Clarence had agreed, in the Angers Contract of 1470, to lose Tutbury without compensation by negotiating with Henry VI and the Lancastrians. Tutbury had been an important source of income for Clarence. He made 40% of his income. His loss reduced his income to the level received by the Henry V brothers and made him dependent on Warwick`s inheritance.