Jean Élie Octave Louis Sévère Amanien Decazes de Glücksbierg, 3rd Duc Decazes and 3rd Duke of Glücksbierg (April 30, 1864 – August 31, 1912), was a French aristocrat and sportsman.

Biography

Decazes was born in Paris. On April 28, 1888, still in Paris, he married Isabelle-Blanche Singer (1869–1896), who was the daughter of American sewing-machine millionaire Isaac Singer. They had three children: After the suicide of his wife in 1896 their children were raised in large part by their aunt Winnaretta Singer, Princess Edmond de Polignac. A member of the Yacht Club de France, Jean Decazes won a silver medal sailing at the 1900 Summer Olympics in the 10 to 20 ton class. The following year he captured the 1901 Coupe de France again using his sailboat Quand-Même II. He died in Chantilly in 1912 aged 48.