Guillaume Apollinaire
Two years after being wounded in World War I, Apollinaire died in the Spanish flu pandemic of 1918; he was 38.
Guillaume Le Blond
Guillaume Le Blond (1704 – May 24, 1781) was a French mathematician. He was born in Paris.
He was a professor of mathematics at the grand stable of the King (1736) and then the Enfants de France (1756). Leblond kept this job until 1778, when he became secretary of the cabinet of Madame Victoire.