April 17 French troops occupy Zeeuws-Flanders, Netherlands April 25 Prince Willem V appointed viceroy of Zealand May 3 Willem IV appointed viceroy of Holland/Utrecht May 4 Willem IV appointed viceroy of Overijssel May 16 Prince Willem V sworn in as admiral-general of Netherlands July 1 Battle at Lafeld: France beat English/Dutch army September 16 French troops occupy Bergen on Zoom November 7 Organgist in Netherlands revolt under Daniel Raap November 30 Dutch State of Zealand declare governorship hereditary for women December 9 England and Netherlands sign military treaty