Leandro N. Alem
1842–1896 (age 54)
Biography
Leandro Nicéforo Alem (born Leandro Alén; 11 March 1841 – 1 July 1896) was an Argentine politician, founder and leader of the Radical Civic Union. He was the uncle and political mentor of Hipólito Yrigoyen. Alem was also an active Freemason.