Battle of Auray

The battle pits partisans of Charles de Blois, supported by France, against those of John de Montfort, backed by England. Despite a solid engagement by Du Guesclin, French forces are defeated. Charles de Blois is killed, Du Guesclin taken prisoner.

Final act of the Breton civil war begun in 1341. The outcome of this battle, occurring a few months after the French victory at Cocherel, seals English domination over Brittany through John IV de Montfort.

English deployment in defensive terrain with archers on the flanks. French troops attack frontally but are repulsed, then encircled. John Chandos's tactical superiority proves decisive.

End of the succession conflict: John IV becomes Duke of Brittany under English tutelage. French influence in the duchy is durably weakened despite Du Guesclin's growing prestige.