The eighth spirit of the Ars Goetia and one of the most distinctly naturalistic in the entire catalogue. Barbatos holds the rare dual rank of Duke and Earl, and arrives with four kings and their companies when the Sun is in Sagittarius. He understands the voices of all birds and animals, reveals treasure hidden by enchantments, knows past and future, and reconciles friends. The spirit of the world beneath human language.
Barbatos's arrival is described with more ceremonial specificity than most Goetia spirits. He appears when the Sun is in Sagittarius — a specific astrological condition that ties his manifestation to a particular time of year (late November through December). He comes accompanied by four kings and their companies of great troops — a substantial retinue that signals his genuine authority within the hierarchy. He is described as a great Duke and Earl simultaneously, one of the Goetia's dual-ranked beings.
The Sagittarian connection is significant. Sagittarius is the sign of the centaur-archer — the being who is half animal, half human, who carries a bow aimed at the stars. Sagittarius governs wisdom gained through direct experience, the understanding of nature, philosophy, the connection between the animal and the divine. A spirit who specifically manifests under Sagittarius and who understands the speech of animals is operating precisely in the centaur's territory: the wisdom of the natural world, the knowledge that exists below and beyond human language.
The Eighth Spirit is Barbatos. He is a Great Duke, and appeareth when the Sun is in Sagittary, with Four Noble Kings and their companies of great troops. He giveth understanding of the voices of Birds, Lowing of Bullocks, Barking of Dogs, and the voices of all other creatures.
— Ars Goetia, Lemegeton Clavicula Salomonis, 17th centuryBarbatos's primary and most distinctive power is the understanding of animal speech — the voices of birds, the lowing of cattle, the barking of dogs, and all other creatures. The Goetia is unusually specific here: it does not simply say "animals" but lists particular species — bird-song, bull-sounds, dog-speech — as if to emphasise the range and specificity of this gift. Every animal has its own form of communication, and Barbatos grants access to all of them.
This power sits in one of the oldest strata of magical tradition. The ability to understand animal speech appears across world mythology as a mark of the shaman, the prophet, the person who has been transformed by divine contact. In Norse tradition, Sigurd gains the ability to understand birds by tasting dragon's blood. In Greek myth, Tiresias understands birds. In the Book of Job, the animals speak wisdom that humans cannot access. Solomon himself, in later Jewish tradition, is said to have been able to speak with animals — one reason why the Goetia, as Solomon's catalogue of spirits, includes a spirit who grants this capacity.
The shamanic dimension: understanding animal speech is the foundational capacity of the shaman across virtually every culture where shamanism appears. The shaman's soul-journey involves the acquisition of animal spirit allies who communicate in their own languages. Barbatos — a spirit who grants access to all animal voices — is, in this reading, the Goetia's shamanic spirit: the one who opens the channel between human consciousness and the knowledge that exists in the non-human world. His Sagittarian nature (the centaur who bridges animal and human) reinforces this reading.
Barbatos is invoked by those seeking deeper connection with the natural world, those who work with animals, and those engaged in forms of divination that use natural signs — bird augury, animal behaviour, weather reading. His treasure-finding capacity extends in modern practice to the discovery of hidden resources or opportunities that are magically concealed or simply overlooked.
His optimal working period — when the Sun is in Sagittarius — gives him one of the clearest seasonal invocation windows of any Goetia spirit. Those who wish to work with Barbatos are well-placed to do so in late November and December, when the astrological conditions that favour his manifestation are naturally present.