In European mythology and literature, a cambion (/ˈkæmbiən/) is the offspring produced from a human–demon sexual union, typically involving an incubus or a succubus.
William of Auvergne, in his 13th-century work De Universo, wrote of "cambiones, from cambiti, that is 'having been exchanged'": the "sons of incubi demons".
"[1] The earliest evidenced appearance of the word "cambion" in the sense of an offspring of two demons is in the 1818 French-language Dictionnaire Infernal.
Delancre and Bodin believe that incubus (male) demons can unite with succubus (female) demons, and that born of their exchange are hideous children which are called cambions ...[3]In the Encyclopedia of Occultism and Parapsychology the cambion is again said to be the direct offspring of the incubus and the succubus, forgoing any need for human involvement.
The concept of offspring born to humans and demons was a subject of debate in the Middle Ages, but did not have a widely accepted name.