Council of Frankfurt

The Council of Frankfurt in 794 was called by Charlemagne. This church council condemned the Adoptionist heresy and revoked decrees regarding the holy icons which were established in 787 at the Second Council of Nicaea. The Council condemned both iconodulism (in favor of idols) and iconoclasm (against icons), "allowing that images could be useful educational devices, but denying that they were worthy of veneration." It condemned the teachings of Felix, Bishop of Urgell as being an adoptionist heresy.

It also condemned the persecution of alleged witches and wizards, called the belief in witchcraft superstitious, and ordered the death penalty for those who presume to burn witches.[1] The council also regulated weights and measures, and offered directives on ecclesiastical discipline and lay religious observance.