The Sainte-Chapelle is a royal chapel in the Gothic style, within the medieval Palais de la Cité, the residence of the Kings of France until the 14th century, on the Île de la Cité in the River Seine in Paris, France. Construction began sometime after 1238 and the chapel was consecrated on 26 April 1248. The Sainte-Chapelle is considered among the highest achievements of the Rayonnant period of Gothic architecture.