Humbert de Wendel was born on 4 February 1876 in Paris VIII. His parents were Henri de Wendel (1844–1906), a steelmaker, and Berthe de Corbel Corbeau...

were Henri de Wendel (1844–1906), an industrialist, and Berthe Corbel-Corbeau de Vaulserre. His mother, who died in 1918, was from a Savoy family of...