In 1887, he married
Aline Caroline de Rothschild (1867–1909), daughter of
Baron Gustave de Rothschild and
Cécile Anspach from Paris. They had two children: •
Philip Albert Gustave David (1888–1939). •
Sybil Rachel Bettie Cécile, Marchioness of Cholmondeley (1894–1989). He died in 1912 at the age of fifty-five. His body was placed in a mausoleum in an Indian style, behind his house at Eastern Terrace,
Brighton. The
Sassoon Mausoleum had been built in 1876 by his father as a family resting place. However, there were no more burials after 1933, when it was emptied and sold, becoming first a furniture store, then a decorator's, next a restaurant and finally the ballroom of the
Hanbury Arms public house. In 2006, the building was again sold to be converted to a private members' club. His great-great-grandson is actor
Jack Huston. ==References==