Rh negative history: The Basque witch trials

Have you ever heard of the Basque witch trials which took place in the 17th century?

The Basque witch trials of the 17th century represent the only serious attempt at rooting out witchcraft ever undertaken by the Spanish Inquisition, which was generally skeptical of such allegations. The trial of the Basque witches began in January 1609 at Logroño, near Navarre and the Basque country. It was influenced by the background of similar persecutions conducted in nearby Labourd, France, by Pierre de Lancre. Although the number executed were small by European standards, it was almost certainly the biggest single event of its kind in history in terms of people investigated. By the end some 7,000 cases had been examined by the Inquisition.