Napoléon Louis Eugène Alexandre Anne Emmanuel de Talleyrand-Périgord

Napoléon Louis Eugène Alexandre Anne Emmanuel de Talleyrand-Périgord (22 March 1867 – 26 September 1951), 8th Duke of Montmorency, was a French aristocrat and soldier.

He was the only son of Nicolas Raoul Adalbert de Talleyrand-Périgord (1837–1915), Duke of Montmorency, and Ida Marie Carmen Aguado y MacDonnel (1847–1880).

[2] His maternal grandparents were Alexandre Aguado, 2nd Marqués of las Marismas del Guadalquivir and Claire Emilie MacDonnel, a lady-in-waiting to Empress Eugénie.

[16] After the death of his first wife, he married wealthy American heiress Cécile (née Ulman) Blumenthal (1863–1927) on 14 November 1917 at the Church of Saint-Pierre-du-Gros-Caillou in Paris.

[17] The widow of New York leather merchant Ferdinand Blumenthal, Cécile lived at 34 Avenue du Bois de Boulogne in the 16th arrondissement of Paris before their marriage, later known as the Hôtel Blumenthal-Montmorency (designed by French architect Henri Paul Nénot).

[18] Shortly after her death, the Hôtel Blumenthal-Montmorency was sold for 8-million francs to Simón Iturri Patiño who gave it to his daughter Graziella.

The widow of industrialist Armand-Augustin-Georges Grandjean, she was a daughter of the French diplomat Alexis-Jules Lefaivre, Minister Plenipotentiary, and Isabelle de Lagotellerie, she had been born in Valparaíso, Chile.