I sure hope Agobard changed his mind before he met his maker.
And why do you hope that? He was an archbishop in France who, says Wikipedia
In his writings against popular superstitions, he denounced the trial by ordeal of fire and water, the belief in witchcraft, and the ascription of tempests to magic, maintained the Carolingian opposition to image-worship, but carried his logic farther and opposed the adoration of the saints. In his purely theological works Agobard was strictly orthodox.
Or, Beretta, do you subscribe to trial by fire for suspected witches?
"The wretched world lies now under the tyranny of foolishness; things are believed by Christians of such absurdity as no one ever could aforetime induce the heathen to believe." - Agobard of Lyons,
ca. 830 AD