The Rayonnant Gothic style originated in which French region?

The Rayonnant Gothic style originated in Île-de-France.

Rayonnant developed in 13th-century France as architects shifted from simply increasing a church’s height and size toward creating lighter, brighter interiors. Its defining visual effect came from large expanses of stained glass, thinner supports, elaborate bar tracery, and huge rose windows whose stone patterns seem to radiate outward.

The style’s early development is closely associated with the rebuilding of the upper choir at the Abbey of Saint-Denis, begun in 1231 near Paris. It reached a celebrated form in buildings such as Amiens Cathedral, Sainte-Chapelle, and the transepts of Notre-Dame de Paris. Île-de-France was therefore both the style’s geographic heartland and its main artistic launching point.

A common mix-up is treating Rayonnant as a style that began throughout Europe at once. It began in the Paris-centered French royal domain and later spread to regions including England, the German lands, and parts of Spain. The name Rayonnant refers specifically to the radiating patterns of its window tracery.