The Italians used lead glaze on their pottery from a very early period. According to Passeri, mezza-majolica covered with marzacotto was made at Pesaro as early as the beginning of the fourteenth century. Sgraffiato ware was made in a similar manner, and derived its name from the incised ornaments which were cut into the white engobe or slip (with which the ware was covered), so as to show the original color below the slip. In the example here given (Fig. 202) the incised decoration is combined with figures and flowers in relief. But the brilliant importations from Spain made a deep impression upon the public taste. The wares of Majorca were those best and most generally known, and its name, as changed to majolica, had been given to the entire class of lustred wares, although the art of lustring was already known in Italy. It is well to discriminate between the name and the article. It is quite possible that the name of the best known type should come to be applied to the entire class. Jacquemart finds the early wares of Pesaro very suggestive of Persian influence. He concludes, also, that the art of applying the metallic lustre may have been communicated by Persian potters, or by others who had learned it from them, to the eastern potteries of Italy. We may conclude that, as the Majorca ware surpassed that of the early Italian potteries, the potters of Italy endeavored to derive what benefit they could from calling their own productions by the same name. Metallic lustres were used before stanniferous enamel was adopted. The invention of the latter in Italy has been generally ascribed to Luca della Robbia, but there is every reason for believing that this is incorrect. It is impossible to suppose that the Saracen and Moorish potters in Italy were unacquainted with it. It is much more likely that, being satisfied with the results of the processes to which they were accustomed, and the beauty of lead glaze, they did not care to use it. [Illustration: Fig. 203.--Luca della Robbia.] To tell what Robbia _did_ accomplish we must glance at his personal history. Luca della Robbia (Fig. 203) was born at Florence in the year 1399 or 1400. At first he turned his attention to the business of a goldsmith, but afterward aspired to sculpture. About 1438 his marble bas-relief of “The Singing Boys” was placed in the Duomo of Florence, and was so great a success that orders quickly multiplied. He had also done some work in bronze, but neither chiselling nor casting was sufficiently speedy. Statues must be copied from a clay model. The model was his own; the copy was, in the general case, the work of an assistant; and probably, even if he chiselled the marble himself, he could not reproduce the effects so easily reached in the plastic clay. [Illustration: Fig. 204.--Holy Family. Medallion by Luca della Robbia. (Hôtel Cluny, Paris)] [Illustration: Fig. 205.--Luca della Robbia. Infant Saviour and Virgin. (Boston Museum of Fine Arts.)]