Mathilde, Princess Alexandre de Caraman Chimay (née Mathilde Gisele Elizabeth Löwenguth, formerly the Countess de Wassanaer and Mrs. Rutherfurd Stuvyesant) (29 November 1877 – 10 July 1948) was a French heiress and society leader who is known for her three marriages to wealthy and prominent men, a Dutch Count, an American heir, and a Belgian Prince.

His first wife, the former Mary Pierrepont (a granddaughter of Peter Augustus Jay),[9][2] had died, along with their son, during childbirth in 1879.

[2] Together, Mathilde and Rutherfurd lived primarily in New York (at 246 East 15th Street opposite Stuyvesant Square), at their country estate known as Tranquility Farms (near Hackettstown, New Jersey)[7] and abroad where she owned a villa in the South of France.

They were the parents of two sons: Her second husband Rutherfurd died suddenly while out for his customary morning walk in the Champs-Élysées in Paris on 4 July 1909.

[25] The Princess Alexandre de Caraman Chimay died on 10 July 1948 at her home, 1170 Fifth Avenue in New York City.