Witches' Sabbath (Goya, 1798) feature of Romanticism, and is to be found for example in Weber's opera "Der Freischütz". However, in a Spanish context, Goya's paintings have been seen as a protest against those who upheld and enforced the values of the Spanish Inquisition, which had been active in Witch hunting during the seventeenth-century Basque witch trials. The later "Witches Sabbath" was painted as a bitter struggle raged between liberals and those in favour of a church and a royalist-lead state, which culminated in the so-called Ominous Decade (1823-1833). Both paintings can be seen as an attack on the superstitious beliefs rife in Spain
Witches' Sabbath century. The "Canon Episcopi" forwards the Christian doctrine that things of this nature were false delusions and did not occur in reality. "Errores Gazariorum" later evoked the Sabbat, in 1452. Helping to publicize belief in and the threat of the Witches' Sabbath was the extensive preaching of the popular Franciscan reformer, Saint Bernardino of Siena (1380–1444), whose widely circulating sermons contain various references to the sabbath as it was then conceived and hence represent valuable early sources into the history of this phenomenon. Some allusions to meetings of more than one witch and possibly other demons are made in the