French neo-Gothic had its roots in the French medieval Gothic architecture, where it was created in the 12th century. Gothic architecture was sometimes known during the medieval period as the "Opus Francigenum", (the "French Art"). French scholar Alexandre de Laborde wrote in 1816 that "Gothic architecture has beauties of its own", which marked the beginning of the Gothic Revival in France. Starting in 1828, Alexandre Brogniart, the director of the Sèvres porcelain manufactory, produced fired enamel paintings on large panes of plate glass, for King Louis-Philippe's Chapelle royale de Dreux, an important early French commission in Gothic taste, preceded mainly by some Gothic features in a few "jardins paysagers".