 The visual lightness of the construction at Saint-Germer-de-Fly was unprecedented and presaged the later Gothic style, with its emphasis on light and lightness.About 1260, Pierre de Wessencourt, the 25th abbot, built the Marian Chapel at the chevet of the abbey church, which closely resembled the Sainte-Chapelle in Paris, built a few years earlier.It is connected to the main church by a narrow passage, and is composed of three vaults with stained glass window-walls.