The Sainte-Chapelle was built in the middle of the 12th century by king Louis IX, future Saint Louis, in order to contain the Holy Relics he had acquired from the Byzantine emperor, including the Holy Crown of Thorns and a piece of the True Cross.
Designed as a palatial chapel, it was actually part of the Palais de la Cité’s confines and was to become the sovereign’s private chapel.
The edifice is divided into two levels. The upper chapel, where the relics were, was reserved for the king and his most prestigious guests whereas the lower chapel was intended for the palace’s staff. Both have a similar plan.
With its unique nave and its 640 sqm of stained glasses, the Sainte-Chapelle gives us an effect of lightness while being penetrated by an intense light all day long. The walls are 5 meters high and above them are stained-glass windows spreading on not less than 15 meters !
