The Paris Peace Conference of 1919 assembled the victors of the First World War, i.e. President Woodrow Wilson (1856–1924) of the United States, Prime Minister David Lloyd George (1863–1945) of Great Britain, Georges Clemenceau (1841–1929) of France, and the Italian Prime Minister Vittorio Orlando (1860–1952). Whereas Germany and Russia had not been invited, many other countries attended the meeting, which eventually led to the Treaty of Versailles being signed on June 28, 1919.
Council of Four at the WWI Paris peace conference, May 27, 1919: Left to right: Prime Minister David Lloyd George (Great Britain), Premier Vittorio Orlando, Italy, French Premier Georges Clemenceau, President Woodrow Wilson, US, black-and-white photograph, 1919, photographer: Edward N. Jackson (US Army Signal Corps); source: Wikimedia Commons, http://commons.wikimedia.org/wiki/File:Big_four.jpg, public domain.