Page "Hekla" Paragraph 6

After the eruption of 1104, stories ( which were probably spread deliberately through Europe by Cistercian monks ) told that Hekla was the gateway to Hell.

The Cistercian monk Herbert of Clairvaux wrote in his De Miraculis ( without naming Hekla ): A poem by the monk Benedeit from circa 1120 about the voyages of Saint Brendan mentions Hekla as the prison of Judas.