who won?
English army
Siege of Aiguillon
 English 
what is siege of aiguillon? It was an episode in the Hundred Years' War, began on 1 April 1346 when a French army commanded by John, Duke of Normandy, laid siege to the Gascon town of Aiguillon. which groups fought in this? French army and  Anglo-Gascon army (English Army) in which country did this take place? France who was the leader from the first group you mentioned earlier? John, Duke of Normandy and who was the leader from the second group mentioned earlier? Ralph, Earl of Stafford when did this siege end? 20 August 1346
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Siege of Aiguillon [SEP] Aftermath
Duke John and his army made contact with Philip VI on, or shortly after, 7 September, two weeks after the French army of the north, 20,000–25,000 strong, had been decisively beaten at the Battle of Crécy with very heavy losses. After Crécy the French stripped their garrisons in the south west to build-up a new army to face the main English threat in the north east. The areas facing Lancaster were effectively defenceless. He launched three separate offensives between September and November. Local Gascon forces besieged the few major strongholds in the Bazadais region still held by the French; they were all taken, including the town of Bazas.