Ivan Benigar was born in Zagreb in 1883, studied in Graz and Prague, and since 1908 lived Argentina, in Patagonia, among Mapuches or Araucanos Indians. He wrote a dictionary of Mapuche language and several other books. Since 1924 he was a member of the “Council of American history”, which is today “National history academy” in Buenos Aires. Married with Eufemia Scheypuquin, grand-daughter of Mapuches chieftain Catriel, he had 11 children. When she died, after 6 years he married again with a Mapuche Indian, and had four children. Due to his intense scientific activity in Latin America, it is not surprising that he earned the title White chieftain of Mapuche Indians. Ivan Benigar and his brother were born in Zagreb, and considered themselves to be Croatians, although their parents were Slovenians, see [Verlichak Vrljicak, Hrvati u Argentini, p. 25].