[1] Among his younger brothers was Count Mathieu Fernand Frédéric Pascal de Noailles, who married the writer Princess Anna Elisabeth Bibesco-Bassaraba de Brancovan (a daughter of Prince Grégoire Bibesco-Bassaraba).
[2] Upon on his father's death in 1895,[1] he succeeded to the dukedom of Noailles, and inherited his father's estate, including the Château de Maintenon in the Eure-et-Loir département of France (best known today as the private residence of Louis XIV's second wife, Madame de Maintenon).
[4] A noted equestrian, the Duke competed in the mail coach event at the 1900 Summer Olympics,[5][6] one of five equestrian competitions held in late May and early June 1900 at the International Horse Show in Paris.
[7] On 5 December 1892, he married Yolande Louise Marie Valentine d'Albert de Luynes (1870–1952), a daughter of Charles Honoré Emmanuel d'Albert de Luynes, 9th Duke of Luynes, and Yolande Françoise Marie Julienne de La Rochefoucauld (a daughter of Sosthène II de La Rochefoucauld, 4th Duke of Doudeauville).
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