María Cayetana de Silva, 13th Duchess of Alba the House of Osuna. The Duchess' relationship with famed Spanish painter Francisco Goya and her somewhat eccentric personality have contributed greatly to a continuing interest in her life during the two centuries since her death. Goya executed several well-known portraits of the duchess, most of them during his stay at Sanlúcar de Barrameda (one of the Andalusian country seats of the House of Medina-Sidonia), shortly after the death of her husband, the Duke of Alba, who was also Duke of Medina Sidonia, in 1796. Goya's accompaniment of the recently widowed Duchess combined with certain innuendo expressed in his portraits 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