Somme (river) invasion fleet of William the Conqueror assembled in the Bay of the Somme, at Saint-Valery-sur-Somme. The river also featured in the 1346 withdrawal of Edward III of England's army, which forded the river at the Battle of Blanchetaque during the campaign, which culminated in the Battle of Crécy. Crossing the river also featured prominently in the campaign which led to the Battle of Agincourt in 1415. In 1636, a Spanish army led by Thomas Francis, prince of Carignan, crossed the Somme defeating a French army during the Thirty Years War threatening Paris. Most famously, the Battle of the Somme, during
Battle of Agincourt Battle of Agincourt The Battle of Agincourt (; ; ) was a major English victory in the Hundred Years' War. It took place on 25 October 1415 (Saint Crispin's Day) in the County of Saint-Pol, Artois, some 40 km south of Calais (now Azincourt in northern France). England's unexpected victory at Agincourt against a numerically superior French army boosted English morale and prestige, crippled France, and started a new period in the war during which the English began enjoying great military successes. After several decades of relative peace, the English had renewed their war effort in 1415 amid the failure