King Leopold III died on September 25, 1983, in Brussels, Belgium.
Leopold III of Belgium died on 1983-09-25.
King Baudouin I of Belgium died on July 31, 1993 at the age of 62.
King Leopold I of Belgium died on December 10, 1865 at the age of 74.
King George III died on 29 January 1820, aged 81.
King Władysław III of Poland died on November 10, 1444 at the age of 20.
King John III of Sweden died on November 17, 1592 at the age of 54.
King William III of England died on March 8, 1702 at the age of 51.
King Charles III of Spain died on December 14, 1788 at the age of 72.
King Frederick III of Denmark died on February 19, 1670 at the age of 60.
King John III of Portugal died on June 11, 1557 at the age of 55.
King James III of Scotland died on June 11, 1488 at the age of 35.