Overview
The blood oath (Hungarian: vérszerződés, lit. "blood contract") was, according to tradition, a pact among the leaders of the seven Hungarian tribes, traditionally held to be the first, unwritten constitution of the Hungarian nation. Its story, along with the terms agreed upon in it, is mostly known from the somewhat unreliable Gesta Hungarorum, a chronicle written between 1196–1203 and is thus possibly influenced by 12th century laws and customs. The oath was sealed by the seven leaders – Álmos, Előd, Ond, Kond, Tas, Huba and Töhötöm – by cutting their arms and letting their blood into a chalice. Becoming blood brothers is likely to have been used traditionally to seal exceptionally strong oaths, and there must have been several similar oaths, but the phrase "blood oath" usually refers to the one by the seven leaders.
In the Gesta Hungarorum
The blood oath is usually regarded to have taken place in the 9th century, under High Prince Álmos, in Etelköz, before the migration into the Carpathian basin. The author of Gesta – only known as "Magister P" and generally referred to as "Anonymus" – narrated its story in his book.
"Then they said to Chieftain Álmos together: »We have chosen you, from this day onward, to be our leader and commander, and wherever your destiny takes you, we are bound to follow.« Then each of the aforementioned men let, in accord with Pagan custom, his blood into a vessel, and sanctioned his oath therewith. And although they were Pagans, still they kept this oath they made together until this death.
And thus was the first part of the oath: That as long as they live and their descendants live, their leader will always be from Álmos's lineage. And thus was the second part of the oath: That all wealth acquired by them will be divided between them. And thus was the third part of the oath: That the nobles who have chosen Álmos as their leader by their own will, and their descendants, will always be included in the leader's council and will bear the country's offices. And thus was the fourth part of the oath: If someone of their descendants would ever be disloyal to the leader or would incite disagreement between the leader and his kin, then he should have his blood spilt, just as the leaders' blood was let from their body when they swore their oath to Chieftain Álmos. And thus was the fifth part of the oath: If a descendant of Álmos or the other leaders would violate the terms of this agreement, he should be forever cursed.
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