Daleszyce prospered until the mid-17th century, when, during the Deluge, Polish–Lithuanian Commonwealth was invaded by the Swedish Empire. During the siege of Chęciny, the invaders ransacked and burned Daleszyce, and the town never recovered from the destruction. In the 18th century, Daleszyce remained a poor town, with most houses made of timber, as it was the cheapest building material. In the Third Partition of Poland of 1795, Daleszyce was annexed by the Austrian Empire. Following the Polish victory in the Austro-Polish War of 1809, it became part of the short-lived Polish Duchy of Warsaw, and in 1815, after the duchy's dissolution it became part of Russian-controlled Congress Poland. In 1820, the town had 232 houses and 1270 inhabitants, and its role as a local trade center was taken over by the quickly developing nearby city of Kielce. Since the mid 19th century, the number of Jews grew, and in 1894, a wooden synagogue was built. Daleszyce officially remained a town, but it looked like a large village.