About Henri La Fontaine
Henri La Fontaine, was a Belgian international lawyer and president of the International Peace Bureau. He received the Nobel Peace Prize in 1913 because "he was the effective leader of the peace movement in Europe." La Fontaine took an early interest in the International Peace Bureau, founded in 1882, and was influential in the Bureau's efforts to bring about The Hague Peace Conferences of 1899 and 1907. In 1907, with Paul Otlet, he founded the Union of International Associations.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.