Full name Marguerite-Laure-Juliette Paule Heine-Furtado She was the natural daughter of Paul Furtado-Fould and Marie Julie Morel, and adopted daughter of Carl and Cecile Heine.
It is said that she is the one who introduced Alice Heine into Paris society when Alice's father Michel Heine took her to Paris from New Orleans as a teenager. (Source: "The Big Wheel" by George W. Herald and Edward D. Radin)