Portrait | Name | Born - Died | Ruled | Notes |
Frederick William III | August 3, 1770 - June 7, 1830 | November 16, 1797 - June 7, 1830 | ||
William I | March 22, 1797 - | June 7, 1830 - March 3, 1880 | ||
Frederick III | October 18, 1831 - June 15, 1888 | March 3, 1880 - June 15, 1888 | ||
William II | January 27, 1859 - June 4, 1941 | June 15, 1888 - June 28, 1919 |