To have glass mounted in silver shows how precious it was considered in those days. Moreover, the royal accounts of the end of the fourteenth century prove that Charles VI accorded high protection and recompense to the Flemish glass-blowers who established their industry in France. Before the end of the fifteenth century, we find entries that would seem to show that the Low Countries were no longer exclusively dependent on the Orient for coloured and enamelled glass. In the inventory of Charles the Bold, Duke of Burgundy (1477), we read: “_Une coupe de voirre jaune garny d’or; ... une couppe de voirre vert garny d’or; ... un pot de voirre de couleur vert, garny d’or; ... un aiguière de voirre vert torssé garny d’or; ... deux petis pots de voirre bleu espez, garnis d’argent doré; ... ung voirre taillé d’un esgle, d’un griffon et d’une double couronne garny d’argent_.” These, however, may have come from Venice, which city had in the latter half of the fifteenth century learned from the Greeks the secret of making coloured, gilded and enamelled glass. Painting on glass was never held in higher honour than during the fifteenth century: castles and mansions were adorned with coloured windows like the churches; and, therefore, a considerable number of windows of this period have survived. The Cathedrals of Tournay, Dietz and Antwerp offer splendid examples. In M. Levy’s _Histoire de la peinture sur verre_, are the names of several Flemish glass-painters that have escaped oblivion.