Under the leadership of
Louis II de la Trémoille, the French royal army had struck against
Vannes and
Fougères, controlling access to Brittany. The French attempted to take control of the major strategic strongholds. The Bretons had sought support from various rebel lords and opponents of expanding French power.
Alain d'Albret, a rebel lord, believing he would marry Anne, had reinforced the Breton army with 5,000 troops supplied by the king of Spain. Maximilian I of Austria also sent 1,500 men.
Henry VII of England was also approached for support, but refused to send troops and instead attempted to negotiate a deal with the French to stop the invasion. However the English knight
Edward Woodville, Lord Scales, defied Henry and brought over a small force of 700 archers he had gathered from his base in the Isle of Wight. The Bretons decided to create the impression that Henry had changed his mind and had sent a large force of longbowmen, dressing 1,300 of their own men in the English cross of St George and adding them to Lord Scales' troops to create a vanguard of 2,000 men. Despite this concentration of forces the Breton alliance was still significantly outnumbered. It was further weakened because Maximilian I was diverted by a rebellion in Flanders, which was being supported by
Marshal de Esquerdes. The Breton forces thus comprised a mix of local troops with Gascons, Germans, English
longbowmen, and non-Breton aristocrats who were challenging royal power. The French army included Swiss and Italian mercenaries, and also some pro-royal Breton noblemen. It had the most powerful
artillery of the era. ==Battle==