The Dutch War sees the city occupied by troops of the King of France. The fortifications are destroyed and Colmar becomes an open city.
"On Wednesday 30 August, the Royal retinue, with over 200 coaches, rode in. It was 11 in the morning. Louis XIV rode around the place. In Andolsheim, where the court dined, Mlle de Montpensier, the Duchess of Orleans, noted down the words of the King: ´Messieurs les Colmariens are no longer as glorious as they once were´".
The demolition work continued unabated, with over 4,000 men knocking the fortifications down. Sappers blew up the towers and walls. On Saturday 2 September, the King stopped off at Colmar, on his way back from Brisach, to see how the demolition was going. When cheered by the soldiers, he cried out "Courage, courage, mes enfants !"