Gaunilo(Fl. 11th Century) Soon after St. Anselm circulated his Proslogion, it was the target of a vigorous rejoinder by an otherwise unknown Benedictine monk named Gaunilo. Although Guanilo 111. Grand Rapids, MI: Eerdmans,...

Gaunilo (or Gaunilon) of Marmoutiers was an 11th-century Benedictine monk, a contemporary of St. Anselm. He is primarily known for his criticism of Anselm's ontological argument for the existence of God, especially in his In Defense of the Fool....