The grandest and finest rooms within the corps de logis are often found not at grade level, but on the first or even the second floor above. This floor is often referred to as the Italian piano nobile, the French bel étage, or the German beletage.
The corps de logis is usually flanked by lower, secondary wings, such as the barchesse of Venetian villas. When the secondary wings form a three sided courtyard, the courtyard is known as the cour d'honneur, as opposed to a quadrangle when a fourth wing encloses it.
^Curl, James Stevens (2006). Oxford Dictionary of Architecture and Landscape Architecture, 2nd edition. Oxford and New York: Oxford University Press, p. 204. ISBN978-0-19-860678-9.