In accordance with Rothschild tradition, Gustave was expected to marry a cousin, and his family hoped that he would propose to one of his cousins,
Mathilde von Rothschild or
Evelina de Rothschild. Instead, in 1859, Gustave married Cécile Anspach, the daughter of a high official in the
Court of Cassation, and they had six children: • Octave de Rothschild (1860–1860), who died young. • (1863–1916), who married Belgian banker in 1882. •
Aline Caroline de Rothschild (1867–1909), who married Sir
Edward Albert Sassoon (1856–1912) in 1887. • Bertha Juliette de Rothschild (1870–1896), who died unmarried. • André de Rothschild (1874–1877), who died young. •
Robert de Rothschild (1880–1946), who married Gabrielle Nelly Régine Beer in 1907. He was rumored to be the lover of
Marguerite Durand, publisher of
La Fronde. ==References==