Witches' Sabbath (The Great He-Goat) powdered glass, orpiment and iron oxides. He likely worked with mixed materials. Technical analysis indicates that most of the Black Paintings begun with preparatory drawings. "Witches' Sabbath" is the exception; the final composition seems to have been painted directly onto the wall. Art historian Fred Licht notes that Goya's brushwork appears "clumsy, ponderous, and rough" and lacking finish compared to his earlier work. Licht believes this was a deliberate ploy to physically convey dismay at human inadequacy and his own feelings of personal doubt. Unique in the series, "Witches' Sabbath" was not significantly altered by Goya after his initial work.
Palacio de los duques de Alba Palacio de los duques de Alba Palacio de Los Duques de Alba is a palace in Piedrahita, province of Ávila, Spain. The palace served as a summer residence for the Dukes of Alba, and currently houses a school. Where once was a medieval castle belonging to the Álvarez de Toledo family, the French architect Jaime Marquet constructed a palace for Fernando de Silva, 12th Duke of Alba between 1755 and 1766. The duke used the palace as a summer residence. His granddaughter María Cayetana de Silva, 13th Duchess of Alba invited to the palace famous visitors such as the painter