Breteuil resided at the
Château de Breteuil. He often invited his friend
Marcel Proust, who based the character of Hannibal de Bréauté in
In Search of Lost Time on him. On 3 March 1891, he married the American heiress Marcelite
"Lita" Garner, whose sister Florence Garner married the Scottish socialite
Sir William Gordon-Cumming. ==Death==