Paris-born architect. He built a number of town- and country-houses in a Renaissance Revival style, including the Château du Duc de Massa, Franconville, Oise (1880–5), Waddesdon Manor, near Aylesbury, Bucks (1888–90), and the Palais d'Albert de Rothschild, Prinz Eugen Strasse, Vienna (1876–82). He designed the priory and mausoleum for Napoleon III and his family at Farnborough, Hants. (1887–9—in a Flamboyant Gothic style), and various mausolea and memorials, including the Hersent tomb, Père-Lachaise Cemetery (1861), and the Collard tomb, Montparnasse Cemetery (1864), both in Paris. His published works include Recueil d'estampes relatives à l'ornamentation des appartements aux XVIe, XVIIe, and XVIIIe siècles (Collection of Engravings Relative to the Ornamentation of Rooms of C16, 17, and 18— 1858–71), and he was much sought-after as a designer of furniture and interiors.
Berckenhagen (1976);Dinsmoor & Muthesius (1985);Hampshire: The County Magazine, xxix/9 (1983), 36–9