Rocaille ( , ) was a French style of exuberant decoration, with an abundance of curves, counter-curves, undulations and elements modeled on nature, that appeared in furniture and interior decoration during the early reign of Louis XV of France. It was a reaction against the heaviness and formality of the Louis XIV style. It began in about 1710, reached its peak in the 1730s, and came to an end in the late 1750s, replaced by Neoclassicism. It was the beginning of the French Baroque movement in furniture and design, and also marked the beginning of the Rococo movement, which spread to Italy, Bavaria and Austria by the mid-18th century. Overview Rocaille was exuberant and inspired by nature like Rococo, but, unlike Rococo, it was usually symmetrical and not overloaded with decoration. It took its name from the mixture of rock, seashell and plaster that was used to create a picturesque effect in grottos during the Renaissance, and from the name of a seashell-shaped ornament which was frequent feature of Rocaille decoration. In 1736, the designer and jeweler Jean Mondon published the Premier Livre: De forme Rocquaille et Cartel, a collection of designs for ornaments of furniture and interior decoration. It was the first appearance in print of the term rocaille to designate the style. The style was used particularly in salons, a new style of room designed to impress and entertain guests. The most prominent example was the salon of the Princess in Hôtel de Soubise in Paris, designed by Germain Boffrand and Charles-Joseph Natoire (1735–40). The characteristics of French Rococo included exceptional artistry, especially in the complex frames made for mirrors and paintings, which sculpted in plaster and often gilded; sinuous curves and counter-cures, and the use of vegetal forms (vines, leaves, flowers) intertwined in complex designs. The leading furniture designers in the style included Juste-Aurele Meissonier and Charles Cressent, along with the wood craftsman Nicolas Pineau. Furniture Rocaille decoration was heavily loaded with decoration modeled on seashells, cascades of leaves and flowers, palm leaves, and other natural elements. The decor on walls and furniture was usually made of carved wood or plaster which was gilded. The French designer Bernard Toro produced a book of flamboyant early Rocaille patterns in 1716, which was widely circulated in Europe. The first major craftsman in the style was Juste-Aurèle Meissonnier, followed by Jean Bérain the Elder, Gilles-Marie Oppenordt, Nicolas Pineau, and the