2014 marked the 100th anniversary of the beginning of World War I. In 1914, the assassination of Archduke Franz Ferdinand of Austria and his wife, the Duchess of Hohenberg, set off a chain of events that would quickly lead to what became known as The Great War. By the time it ended four years later, the Russian, German, Austrian, and Ottoman Empires had crumbled, the royal landscape of Europe had changed forever, and about 10 million military personnel and about 7 million civilians had died.
- June 28, 1914 – Assassination of Archduke Franz Ferdinand, heir to the throne of Austria-Hungary
- European Monarchies at the Start of World War I in 1914
- European Monarchies at the End of World War I in 1918
- World War I: Who Was On What Side?
- Glossary of German Noble and Royal Titles
- August 1914: Royalty and World War I
- September 1914: Royalty and World War I
- October 1914: Royalty and World War I
- October 27, 1914: Prince Maurice of Battenberg, grandchild of Queen Victoria killed
- November 1914: Royalty and World War I
- December 1914: Royalty and World War I
- Princess Mary’s 1914 Christmas Gift
- January 1915: Royalty and World War I
- February 1915: Royalty and World War I
- March 1915: Royalty and World War I
- April 1915: Royalty and World War I
- May 1915: Royalty and World War I
- June 1915: Royalty and World War I
- July 1915: Royalty and World War I
- August 1915: Royalty and World War I
- September 1915: Royalty and World War I
- October 1915: Royalty and World War I
- November 1915: Royalty and World War I
- December 1915: Royalty and World War I
- January 1916: Royalty and World War I
- February 1916: Royalty and World War I
- March 1916: Royalty and World War I
- April 1916: Royalty and World War I
- May 1916: Royalty and World War I
- June 1916: Royalty and World War I
- July 1916: Royalty and World War I
- August 1916: Royalty and World War I
- September 1916: Royalty and World War I
- October 1916: Royalty and World War I
- November 1916: Royalty and World War I
- December 1916: Royalty and World War I
- January 1917: Royalty and World War I
- February 1917: Royalty and World War I
- March 1917: Royalty and World War I
- April 1917: Royalty and World War I
- May 1917: Royalty and World War I
- June 1917: Royalty and World War I
- July 1917: Royalty and World War I
- July 17, 1917: The Birth of the House of Windsor
- August 1917: Royalty and World War I
- September 1917: Royalty and World War I
- October 1917: Royalty and World War I
- November 1917: Royalty and World War I
- December 1917: Royalty and World War I
- January 1918: No Article
- February 1918: Royalty and World War I
- March 1918: Royalty and World War I
- April – May 1918: Royalty and World War I
- June 1918: Royalty and World War I
- July 1918: Royalty and World War I
- August 1918: Royalty and World War I
- September 1918: Royalty and World War I
- October 1918: Royalty and World War I