Witches' Sabbath (The Great He-Goat) whose full-length portrait appears in the same series. As with the other "Black Paintings", Goya began with a black background which he painted over with lighter pigments, then with broad, heavy brushstrokes of grey, blue and brown. The darker areas were achieved by leaving the black under-paint exposed; this is most obvious in the figure of the Devil. Like the other works in the series, "Witches' Sabbath" is worked up through heavy, slashing brushstrokes. The plaster was underlaid with thick carbon black before the paint was applied in hues of white lead, Prussian blue, vermilion of mercury, and crystals of
Witches' Sabbath to Sunday, or to a time period similar to Sabbath in the seventh-day church minority. In connection with the medieval beliefs in the evil power of witches and in the malevolence of Jews and Judaizing heretics (both being Sabbathkeepers), satanic gatherings of witches were by outsiders called "sabbats", "synagogues", or "convents". Local variations of the name given to witches' gatherings were frequent. Perhaps the earliest work that mentions a something like a gathering that might be interpreted, from the Christian point of view, as witches sabbath is"Canon Episcopi" (906) and later included in Burchard of Worms's collection in the 11th