Horses are often sacrificed in a funerary context, and interred with the deceased, a practice called horse burial. There is evidence but no explicit myths from the three branches of Indo-Europeans of a major horse sacrifice ritual based on a mythical union of Indo-European kingship and the horse. The IndianAśvamedha is the clearest evidence preserved, but vestiges from Latin and Celtic traditions allow the reconstruction of a few common attributes. Some scholars, including Edgar Polomé, regard the reconstruction of a PIE ritual as unjustified due to the difference between the attested traditions.
Etymology
The Gaulish personal nameEpomeduos is from ek'wo-medhu-, while aśvamedha is either from ek'wo-mad-dho- or ek'wo-mey-dho-.
Mythology
The reconstructed myth involves the coupling of a king with a divine mare which produced the divine twins. A related myth is that of a hero magically twinned with a horse foaled at the time of his birth, suggested to be fundamentally the same myth as that of the divine twin horsemen by the mytheme of a "mare-suckled" hero from Greek and medieval Serbian evidence, or mythical horses with human traits, suggesting totemic identity of the Indo-European hero or king with the horse.
Comparative rituals
Vedic (Indian)
was a political ritual that was focused on the king's right to rule. Horse had to be a stallion and it would be permitted to wander for a year, accompanied by people of the king. If the horse roamed off into lands of an enemy then that territory would be taken by the king, and if the horse's attendants were killed in a fight by a challenger then the king would lose the right to rule. But if the horse stayed alive for a year then it was taken back to the king's court where it was bathed, consecrated with butter, decorated with golden ornaments and then sacrificed. After the completion of this ritual, the king would be considered as the undisputed ruler of the land which was covered by the horse.
the sacrifice is connected with the elevation or inauguration of a member of the Kshatriyawarrior caste
the ceremony took place took place in spring or early summer
the horse sacrificed was a stallion which won a race at the right side of the chariot
the horse sacrificed was white-colored with dark circular spots, or with a dark front part, or with a tuft of dark blue hair
it was bathed in water, in which mustard and sesame are mixed
it was suffocated alongside a hornless ram and a he-goat, among other animals
the chief queen lay down with the suffocated horse beneath a linen blanket and mimicked sexual intercourse with it, while the other queens perambulated the scene, slapping their thighs and fanning themselves
the stallion was dissected along the "knife-paths" — with three knives made from gold, copper, and iron — and its portions awarded to various deities, symbolically invoking sky, atmosphere and earth, while other priests started reciting the verses of Vedas, seeking healing and rejuvenation for the horse.
the sacrifice took place on the Ides of October, but through ritual reuse was used in a spring festival
two-horse chariot races determined the victim, which was the right-hand horse of the winning team
the horse is dismembered: the tail is taken to the Regia, the king's residence, while two factions battle for possession of the head as a talisman for the coming year
Irish
recorded a ceremony among the Irish:
There is in a northern and remote part of Ulster, among the Kenelcunil, a certain tribe which is wont to install a king over itself by an excessively savage and abominable ritual. In the presence of all the people of this land in one place, a white mare is brought into their midst. Thereupon he who is to be elevated, not to a prince but to a beast, not to a king but to an outlaw, steps forward in beastly fashion and exhibits his bestiality. Right thereafter the mare is killed and boiled piecemeal in water, and in the same water a bath is prepared for him. He gets into the bath and eats of the flesh that is brought to him, with his people standing around and sharing it with him. He also imbibes the broth in which he is bathed, not from any vessel, nor with his hand, but only with his mouth. When this is done right according to such unrighteous ritual, his rule and sovereignty are consecrated.
The horse is dismembered and cooked in a cauldron, and consumed by the king who is also sitting in the cauldron.
Norse
The Norse ceremony according to the description in Hervarar saga of the Swedish inauguration of Blot-Sweyn, the last or next to last pagan Germanic king, c. 1080:
The primary archaeological context of horse sacrifice are burials, notably chariot burials, but graves with horse remains reach from the Eneolithic well into historical times. Herodotus describes the execution of horses at the burial of a Scythian king, and Iron Agekurgan graves known to contain horses number in the hundreds. There are also frequent deposition of horses in burials in Iron Age India. The custom is by no means restricted to Indo-European populations, but is continued by Turkic tribes.