Question: who was the last of the dutch stadholders that ruled
Answer: y 1640 ( 1640 - 07 - 13 ) ( aged 28 ) 1632 1640 Stadtholder , son of Ernest Casimir I Nassau William Frederick Willem Frederik ( 1613 - 08 - 07 ) 7 August 1613 -- 31 October 1664 ( 1664 - 10 - 31 ) ( aged 51 ) 1640 1664 Stadtholder , son of Ernest Casimir I Nassau Henry Casimir II Hendrik Casimir II ( 1657 - 01 - 18 ) 18 January 1657 -- 25 March 1696 ( 1696 - 03 - 25 ) ( aged 39 ) 18 January 1664 25 March 1696 Hereditary Stadtholder , son of William Frederick and maternal grandson of Frederick Henry Nassau John William Friso Johan Willem Friso ( 1687 - 08 - 04 ) 4 August 1687 -- 14 July 1711 ( 1711 - 07 - 14 ) ( aged 23 ) 25 March 1696 14 July 1711 Hereditary Stadtholder , son of Henry Casimir II , succeeded by his son William IV of Orange - Nassau , Hereditary Stadtholder of the United Netherlands Nassau