In the decline of Spanish art and the general interest of Europe in Italianate and rococo motives, Velasquez during the eighteenth century was forgotten. Toward the end of that century, however, Goya derived inspiration from his works, and nearly a hundred years later Manet, Whistler and others rediscovered him. His example has been the chief influence in leading the world back to regard a painting as a work of art, and in teaching the painter himself the technique that will entitle it to be so considered. The duration of his influence has corresponded with the vogue of naturalism which has prevailed in Literature and the Fine Arts, a reflex action of the general scientific attitude of the time. The vogue is passing, and Velasquez’s immediate _influence_ may grow less. But his _reputation_ will endure, because it is founded upon the lasting foundation of “truth, not painting.” CHAPTER VII MAZO A twofold interest attaches to Juan Bautista de Mazo, the pupil and son-in-law of Velasquez. In the first place, he was employed by his master to copy many of the latter’s pictures, so that he is involved in the controversies which have arisen over their attribution. Secondly, he was himself an original portrait painter, and practically the only representative of landscape painting in the Spanish School. Mazo was a native of Madrid, the date of his birth being placed approximately in 1612, because he is reported to have lived a little over fifty years, and his death took place in 1667. It is not known when he entered the studio of Velasquez, but he married the latter’s daughter, Francisca, in 1634. The King signalised his approval of the marriage by relieving Velasquez of his duties as Usher of the Chamber and transferring them to Mazo. The young people made their home with their parents-in-law, and Mazo worked in constant companionship with Velasquez until the latter’s death. He seems to have had a remarkable faculty of imitation, for Palomino, writing shortly after Mazo’s death, says: “He was so skilled as a copyist, especially with regard to the works of his master, that it is hardly possible to distinguish the copies from the originals. I have seen some copies of his, after pictures by Tintoretto, Veronese and Titian, which are now in the possession of his heirs. If these copies were produced in Italy, where his talent is unknown, they would be taken without any doubt for originals.” Velasquez utilised this ability of his pupil, as Rubens and Rembrandt made use respectively of theirs, to assist him in part or in whole. Copies of his pictures were required by the King for presentation to members of the Royal Family of Austria, to ambassadors and others to whom he wished to show special favor. In some cases Velasquez himself made a replica, more often, because of the interruptions of his Court duties and the stress of other work, would employ Mazo to make a copy, leaving it intact or touching it up as the case might be.