William, Prince of Orange, was heir apparent to the Dutch throne as the eldest son of King William III from 17 March 1849 until his death. Wikipedia
Born: September 4, 1840, Noordeinde Palace, The Hague, Netherlands
Died: June 11, 1879 (age 38 years), Paris, France
Parents: William III of the Netherlands and Sophie of Württemberg
Great-grandparents: William I of the Netherlands, Wilhelmine of Prussia, Queen of the Netherlands, Maria Feodorovna, and more
Grandparents: Willem II of the Netherlands, Anna Pavlovna of Russia, Catherine Pavlovna of Russia, and more
Niece: Juliana of the Netherlands