Who inspired the French forces in the Battle of Patay?

The Battle of Patay (18 June 1429) was the culminating engagement of the Loire Campaign of the Hundred Years' War between the French and English in north-central France. It was a decisive victory for the French and turned the tide of the war. This victory was to the French what Agincourt was to the English. Although credited to Joan of Arc, most of the fighting took place at the vanguard of the French army and the battle was over before the main body could arrive.

The Battle of Patay took place the day after the English surrender at Beaugency. In this battle, the English attempted to use the same tactics it had in the victorious battles of Crécy in 1346, Poitiers in 1356, and Agincourt in 1415. These tactics called for having extensive numbers of longbowmen defended by sharpened stakes driven into the ground in front of their army, the stakes slowing and hampering a cavalry assault while the longbowmen massacred the enemy. However, in the Battle of Patay, the French knights were finally able to catch the English unprepared.