William IV, Grand Duke of Luxembourg

William IV (William Alexander; French: Guillaume Alexandre; 22 April 1852 – 25 February 1912) reigned as the Grand Duke of Luxembourg from 17 November 1905 until his death. He succeeded his father, Adolphe.

Currently, William is the last monarch of Luxembourg to die while still on the throne.

Titles and styles
Although the Duchy of Nassau was annexed by Prussia after the Austro-Prussian war of 1866, the title of Duke of Nassau was retained by William and his heirs.Almanach de Gotha (1901), article "Luxembourg" This does not imply any sovereignty over Nassau.

22 April 1852 - 23 November 1890: His Highness The Hereditary Prince of NassauIt was customary for a reigning Duke, his heir apparent, and their spouses to use the style of Highness.
23 November 1890 - 17 November 1905: His Royal Highness The Hereditary Grand Duke of Luxembourg, Hereditary Prince of NassauIt was customary for a reigning Grand Duke, his heir apparent, and their spouses to use the style of Royal Highness
17 November 1905 - 25 February 1912: His Royal Highness The Grand Duke of Luxembourg, Duke of Nassau

Notes

Other websites
 Grand-Ducal House of Luxembourg

Category:Grand Dukes of Luxembourg
Luxembourg, William IV of
Luxembourg, William IV of