Boni de Castellane wrote of him: A cabotin, brave, amiable, high but without airs-and-graces, he had a supreme elegance, with the air of a grand seigneur, but with a certain something of the actor Gil-Pérès.

Quite diplomatic, very ignorant, without taste for things of value, he was full of a "chic" which showed itself in all his sounds, gestures, poses and even the black band of his spectacles.

He excelled in the art of paying homage to women who showed themselves attentive to him, like a cat, without good-faith or law.

After his death, his titles passed to his son, Hélie de Talleyrand-Périgord, Duke of Sagan.

[3] In 1858, he married Jeanne Seillière (1839-1905),[4] the heiress to Baron de Seilliere, army supply contractor who had enriched himself during the Franco-Prussian War.