It was now the middle of August, and heavy rains prevented further advance; while only excuses for delay came from Britanny and it became every day clearer that the Burgundian Duke had no real purpose to aid.

Lewis seized the moment of despair to propose peace on terms which a conqueror might have accepted, the security of Britanny, the payment of what the English deemed a tribute of fifty thousand crowns a year, and the betrothal of Edward's daughter to the Dauphin.

A separate treaty provided for mutual aid in case of revolt among the subjects of either king; and for mutual shelter should either be driven from his realm.

In spite of remonstrances from the Duke of Burgundy this truce was signed at the close of August and the English soldiers recrossed the sea.
[Sidenote: Edward's policy] The desertion of Charles threw Edward, whether he would or no, on the French alliance; and the ruin of the Duke explains the tenacity with which he clung to it.

Defeated by the Swiss at Morat in the following year, Charles fell in the opening of 1477 on the field of Nanci, and his vast dominion was left in his daughter's charge.