Analysis of information sources in references of the Wikipedia article "Empire style" in English language version.
Courts across Europe adopted the Empire style, especially in Russia, where it became a staple. In Germany and Austria, it coexisted with the gentler Biedermeier associated with modest domestic interiors. Charles Percier (1764–1838) and Pierre-François-Léonard Fontaine (1762–1853) were the two most influential figures in the field of Empire decoration and furnishing. Official architects to the court of Napoleon, their main responsibility was the renovation of the various royal residences. Their Recueil de décorations intérieures (1812) was an essential handbook of the Empire style.