Henri La Fontaine ( 22 April 1854 -- 14 May 1943 ) , was a Belgian lawyer . He is most well known for receiving the Nobel Prize of Peace in 1913 . Henri La Fontaine ( 22 April 1854 -- 14 May 1943 ) , was a Belgian international lawyer and president of the International Peace Bureau from 1907 to 1943 who received the Nobel Prize for Peace in 1913 .