Willem Alexander Karel Hendrik Frederik van Oranje-Nassau, Prince of Orange, Prince of the Netherlands, Prince of Orange-Nassau, Heir Apparent to the Throne of the Netherlands, was born 25 August 1851 in The Hague, South Holland, Netherlands to Willem III van Oranje-Nassau (1817-1890) and Sophie von Württemberg (1818-1877) and died 21 June 1884 in The Hague, South Holland, Netherlands of typhus. Notable ancestors include Johan Willem Friso van Nassau-Dietz (1687-1711), Robert I of Scotland (1274-1329), Charlemagne (747-814), William I of England (1027-1087), Hugh Capet (c940-996), Henry II of England (1133-1189), Alfred the Great (849-899), Gustav I of Sweden (1496-1560), Willem van Oranje (1533-1584). Ancestors are from Belgium, Russia, Germany, the United Kingdom, Denmark, Scotland, England, France, Spain, the Netherlands, Latvia, Sweden, the Czech Republic, Hungary, Belarus, Ukraine, Poland, Austria, Lithuania, Bohemia, Switzerland, Italy, Slovakia, Slovenia, Portugal, Israel, Ireland, Turkey, the Byzantine Empire, the United States.

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