A multi-disciplinary artist, he sought to remove the boundaries between the arts,[6] particularly between sculpture and painting, and worked in everyday places, squares and streets, as well as creating objects and furniture.

His famous works include his Cloud table[7] (1970), designed for the interior designer Henri Samuel (1904-1996), his Mise en couleurs d'un musée[8] (1974), a temporary artistic intervention during which he covered the columns of the Musée d'art Moderne de la Ville de Paris with strips of coloured PVC, and his Environnement pour une autoroute,[9] in which he installed urban sculptures over 30 km along the La Veuve-Sainte Ménéhould section of the A4 motorway, France (1977).

Lastly, her younger sister, Anne de Rougemont, was Aimé Maeght's assistant, then attached to the I.C.O.M,[11] and a member of the Association des Amis du Musée Georges Pompidou, before becoming assistant to Madame David-Weill, President of the Union des Arts Décoratifs, a union itself created by Mr Taigny, great-grandfather of Madame Louise Lejeune, the artist's mother.

[13] Guy de Rougemont was exposed to art from an early age, as his paternal American grandmother introduced him to watercolours in his childhood.

[11] After the Second World War, Jean-Louis du Temple de Rougemont was appointed deputy military attaché in Great Britain.

In 1957, his father was appointed to the Pentagon as part of the Atlantic Pact, so the whole family moved to Washington for a year, where Guy de Rougemont attended an American school and exhibited his first watercolours.

In 1953, he studied at the École Nationale Supérieure des Arts Décoratifs (ENSAD), in the studio of the painter Bernard Cathelin (1919-2004), rue de la Grande Chaumière.

[13] He was admitted to the Arts-Déco in Paris on the 24th of May, 1954 and studied painting - notably in Marcel Gromaire's studio - and soon took part in his first exhibitions, initially abroad.

He produced one of his major works in 1986, the coloured marble mosaic[14] that adorned the pavement of the Bellechasse forecourt, in front of the Musée d'Orsay.

His many projects include the Saint-Louis hospital, the Marne-la-Vallée RER station, the Musée d'Orsay forecourt, the Hakone Open Air Museum in Japan, the Place Albert-Thomas in Villeurbanne, the Hofgarten in Bonn, the Quito metropolitan park in Ecuador, the Nanterre Hospital, where he created a 300-metre-long mural, the sculptures on the A4 motorway between Châlon-en-Champagne and Sainte-Ménéhould, and the 140-metre-long carpet-paving comprising 28 types of coloured marble, known as "le grand ruban "[15] in the Pierre Beregovoy hall of the Colbert building at the French Ministry of Finance in the Bercy district (Paris 12e).

During his trip to New York, Guy de Rougemont also learnt the technique of screen printing, originally used by Americans to mark crates of goods using the stencil system, which was later taken up by artists for their graphic research.

For several years, he shared his studio in the Marais, rue des Quatre Fils, in Paris, with his friend Éric Seydoux,[19] with whom he produced silkscreens for other artists and for various social events.

In 1969, for his exhibition at the Suzy Langlois gallery in Paris, he presented his first cardboard "Volumes" and created his first carpet, known as the Tapis de forme libre,[6] which marked the beginning of his research into the third dimension.

A member of the Institut of France, he was elected to the Académie des Beaux-Arts, painting section, on the 17th of December, 1997[3] in the chair of Jean Bertholle.