Battle of Castillon
From the 1430s, the artillery of Charles VII was managed by Master Gunner Jean Bureau. Artillery was key to the French successes at Meaux (1439), Pontoise (1441), BCaen and during the Norman Campaign (1449–1450). French artillery was used with great efficiency at the 1453 Battle of Castillon, in which grouped and entrenched cannons decimated the English army, killing the commander John Talbot.