Acronyms that contain the term rayonnant 

Rayonnant

In French Gothic architecture, Rayonnant (French pronunciation: ​[ʁɛjɔnɑ̃]) is the period from about the mid-13th century to mid-14th century. It was characterized by a shift away from the High Gothic search for increasingly large size toward more spatial unity, refined decoration, and additional and larger windows, which filled the space with light. Prominent features of Rayonnant include development of the rose window; more windows in the upper-level clerestory; the reduction of the importance of the transept; and larger openings on the ground floor to establish greater communication between the central vessel and the side aisles. Interior decoration increased, and the decorative motifs spread to the outside, to the facade and the buttresses utilizing great scale and spatial rationalism towards a greater concern for two-dimensional surfaces and the repetition of decorative motifs at different scales. The use of tracery gradually spread from the stained glass windows to areas of stonework, and to architectural features such as gables.The first major example in France was Amiens Cathedral (1220–1270). The most prominent and accomplished French example was the rebuilding of portions of Notre Dame de Paris (begun 1250s), including the addition of the great rose windows. The finest example of the late Rayonnant is the royal chapel in Paris, Sainte-Chapelle, in which the upper floor has the appearance of a great cage of stained glass.From Medieval France, the style quickly spread to England, where French Rayonnant tracery was often incorporated into more traditional English features, such as colonettes and vault ribs.

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