Baron Emile Beaumont D'Erlanger (4 June 1866 – 24 July 1939) was a French-born British merchant banker.
His older brother, Baron Raphael Slidell d'Erlanger, who might have been more likely to follow his father into banking, was instead a scientist and professor at Heidelberg.
In Paris in 1895, he married Rose Marie Antoinette Katherine (Kate) Robert d'Aqueria de Rochegude (1874–1959).
They lived in Falconwood, Woolwich, near Shooters Hill, south-east London, and also at 139 Piccadilly, the former home of Lord Byron.
His wife, the Baroness, was a patron of the arts, supporting artists such as Cecil Beaton, Romaine Brooks,[5] and Sergei Diaghilev.