and de Graaff declined slowly but steadily. Frederick Henry , or Frederik Hendrik in Dutch (29 January 1584 – 14 March 1647), was the sovereign Prince of Orange and stadtholder of Holland, Zeeland, Utrecht, Guelders, and Overijssel from 1625 to 1647. Contents 1 Biography 1.1 Early life 1.2 Stadtholder 1.3 Death 2 Children