She was the eldest daughter and child of Prince Emmanuel of Orléans, Duke of Vendôme and his wife, Princess Henriette of Belgium.

[a][5] The couple had one child before their divorce in 1925:[6] Marie Louise married secondly to Walter F. Kingsland Jr. (1888-1961), a prominent New York businessman, on 12 December 1928 in Chichester, Sussex, England.

[8][9] His father owned a "palatial home in the Bois de Boulogne" and his grandfather was Ambrose Kingsland, the former Mayor of New York City.

[10] Marie Louise and Walter did not have children, and lived in Redding, Connecticut, for twenty years.

[2] Through her only son Prince Gaetano,[12] she was the grandmother of two grandsons: Adrian Philip de Bourbon (b.