On 7 September, the Spanish army led by Juan Alfonso Enríquez de Cabrera, 9th Admiral of Castile, relieved the city and defeated the French forces. The raising of the siege is celebrated annually on 8 September in a parade, known as Alarde.
After the French disaster of Fuenterrabía (Hondarribia), Henri d'Escoubleau de Sourdis attempted to blame the defeat on Bernard de La Valette, Duke d'Épernon, who had refused to lead the attack, believing that it would fail.
For the successful resistance, the city received the title of «Muy noble, muy leal, muy valerosa y muy siempre fiel».
References
Collins, James B. (1995). The State in Early Modern France. Cambridge University Press.
Geoffrey Parker, Spain and the War, The Thirty Years' War London Routledge (1984).