(French for The Holy Chapel) is a Gothic chapel on the Ile de la Cité in the heart of Paris, France. It is perhaps the high point of the full tide of Gothic architecture, called rayonnante.
It was planned in 1241, started in 1246 and quickly completed: it was consecrated on April 26, 1248. The patron was the very devout Louis IX of France, who constructed it as a chapel for the royal palace. The palace itself has otherwise utterly disappeared, leaving the Sainte-Chapelle all but surrounded by the Palais de Justice, which carries on a single function of the palace, which was the site of the king’s lit de justice where important aristocrats pled their cases before the king.