Moreover, the peace promised by the treaty proved illusory. While the English were at peace with France, the discharged mercenary companies found new employment by ravaging the countryside and holding whole cities to ransom. Soon after his return from captivity, King John II commissioned James and Jean de Tancarville to raise an army to put down the "Free Companies" under the informal leadership of Petit Meschin before they could overrun Burgundy. Bourbon and Tancarville gathered their army at Brignais. Never dreaming that the companies would dare challenge them in the open they took few steps to secure their camp and when the companies attacked that morning of 6 April 1362 they were taken completely by surprise. In the battle that followed the governmental army was routed and James and his oldest son were mortally wounded.