Becherer, Johann (1601). Neue Thüringische Chronica. Müllhausen: Martin Spiess. p. 648. Retrieved 24 March 2013. See also the 3-day long torture and execution method of Peter Niers, who was executed in 1581 for 544 murders, including the murder of 24 women and their fetuses, the latter to be used in rituals of black magic.