In 1660, the city was used as the royal headquarters during the marriage of the Infanta to Louis XIV at Saint-Jean-de-Luz nearby. After a relatively peaceful 17th century, the town was besieged and taken over by the troops of the French Duke of Berwick up to 1721. However, San Sebastián was not spared by shelling in the French assault and many urban structures were reconstructed, e.g. a new opening in the middle of the town, the Plaza Berria (that was to become the current Konstituzio Plaza).