The Celtic long sword of the Iron Age distinctive weapons of pre-Roman Europe, and it is also one of the most distinctive in another sense: a remarkable number of the surviving examples have been found bent, twisted, or deliberately broken. The pattern is so common that early archaeologists interpreted it as a deliberate ritual practice, the ritual killing of the sword at the burial of its owner, but modern analysis has shown that the explanation is more complex and more interesting. To understand why the iron Celtic sword curved and twisted is to understand the metallurgy, the combat style, and the symbolic meaning of the most prestigious weapon in the equipment of the Celtic warrior in the wider context of Celtic warfare and warriors.
The Celtic Long Sword
The Celtic long sword, developed in the late Hallstatt period of the seventh and sixth centuries BCE and refined throughout the La Tène period, was a weapon of typically 70 to 85 centimetres in blade length, designed primarily for cutting, with a cutting edge on both sides of the blade. The hilt was usually of organic materials, wood or horn, with fittings of bronze or iron, and the most distinctive La Tène form, the antenna-hilted sword, had two curved, antenna-like projections from the pommel, which gave the weapon a characteristic appearance and which provided a secure grip for the hand.
The blade was the heart of the weapon, and the quality of the best Celtic blades was acknowledged even by Roman writers. The technique of pattern-welding, in which strips of iron of different carbon content were forge-welded together and twisted to produce a blade of unusual strength and flexibility, was developed by Celtic smiths in the late Hallstatt period and reached its highest development in the La Tène workshops. The decorative inlay of the blade with contrasting metals — copper, silver, gold, and the dark niello — was a further mark of the highest-quality weapons, and the surviving examples of inlaid La Tène swords are among the most technically accomplished metalwork of the ancient world.
The Phenomenon of the Bent and Twisted Sword
The most striking feature of the archaeological record of the Celtic sword is the very high proportion of excavated examples that are bent, twisted, or otherwise damaged. At the Hallstatt-period cemetery of Hallstatt itself, the type site for the early Iron Age, a large proportion of the swords found in the graves are bent, often deliberately bent back on themselves in a tight curve. At the La Tène-period lake-dwelling sites of Switzerland, where hundreds of iron tools and weapons have been preserved in the waterlogged conditions, the same pattern is visible. The phenomenon has been studied as much discussion, and three main explanations have been proposed.
The first explanation is that the swords were deliberately damaged as a funeral rite. The warrior who was buried with his sword, the theory runs, had the weapon bent or broken to release the spirit of the sword and to allow it to follow its owner into the afterlife. The parallel with the Scandinavian practice of ship-burial and the breaking of weapons and tools in late Iron Age and Viking graves is suggestive, and the pattern of deliberate damage is most common in the funerary context.
The second explanation is that the swords were bent in combat. The Celtic long sword was a cutting weapon, designed to deliver a slashing blow, and the blade could be bent by a hard impact against an enemy’s shield, helmet, or armour. The bending of a sword in combat is attested in many historical sources, and the survival of bent blades in the archaeological record is consistent with a high proportion of swords being lost or discarded after damage in battle.
The third explanation is that the swords were bent to demonstrate the skill of the smith. A sword that was bent and then straightened, or that was bent in a particular pattern, was a sword that had been tested, and the demonstration of the sword’s flexibility was a way of proving its quality. The parallel with the Japanese practice of testing a katana by bending it is suggestive, and the deliberate bending of Celtic swords has been interpreted as a kind of quality control.
The Metallurgical Reality
The most likely explanation of the bent and twisted swords is a combination of the three, and it requires an understanding of the metallurgy of the Celtic blade. The Celtic sword was made of iron, sometimes with a steel cutting edge, and the iron of the Iron Age was a variable material, with different carbon contents and different inclusions. The pattern-welded blades of the highest quality were strong and flexible, but the simpler blades of lower-quality iron could be brittle and prone to bending. A hard impact against a shield rim, a helmet, or a metal boss could bend such a blade, and the bending of a blade in combat was a regular occurrence.
The Celtic warrior of the late Iron Age was familiar with the limitations of his weapon, and the deliberate bending of a sword in the forge, as a way of testing it, was a sensible precaution. A sword that bent easily was a sword that would fail in combat, and the smith who produced a sword that could be bent to a considerable angle and still return to its original shape was a smith who had produced a good weapon. The pattern of bending and straightening visible in many excavated swords is consistent with this interpretation.
The deliberate breaking of a sword at the burial of its owner is a separate phenomenon, related to the symbolic destruction of the warrior’s equipment at death. The practice is well attested in the later Iron Age and the Migration Period, and the symbolism of the broken sword is closely related to the symbolism of the head cult, in which the most powerful parts of the warrior’s equipment were destroyed or disabled to release the spirit.
The Sword in Celtic Combat
The Celtic sword was a cutting weapon, designed for use in close combat. The slashing blow, delivered from above or from the side, was the principal technique, and the long blade and the sharp cutting edge made the Celtic sword particularly effective against lightly armoured opponents. Against heavily armoured opponents, including Roman legionaries in their lorica hamata or lorica segmentata, the Celtic sword was less effective, and the Roman writers noted that the Celtic sword tended to bend on impact with the Roman shield rim or the Roman helmet.
The Celtic warrior, like the Roman, was trained to deliver a particular set of blows with the sword, and the training of the warrior, in the war band and in the heroic literature, included extensive practice with the weapon. The famous ríastrad or warp-spasm of Cú Chulainn, in which the hero’s body underwent a terrifying transformation before battle, was accompanied by elaborate descriptions of the hero wielding his weapons in unusual and frightening ways, and the heroic literature preserves a vivid picture of the techniques of the Celtic sword.
The Sword as Symbol
The Celtic sword was more than a weapon. It was a symbol of the warrior’s status, of his relationship to his lord, and of his place in the religious order of the community. The decorated scabbard, the elaborate hilt, and the carefully chosen blade were all signs of the value placed on the weapon, and the burial of the sword with its owner was a sign of the bond between the warrior and his weapon. The sword that was bent or broken at the burial was not merely a damaged weapon but a symbol of the relationship between the warrior and his lord, of the bond that had been formed in life and that was now being dissolved in death.
The sword was also a sacred object in its own right. The Celtic sword was associated with the goddesses of war and fertility, and the names of the swords in the heroic literature — Caladbolg, Fragarach, Cruaidín Catutchenn — were names of power that connected the weapon to the divine order. The sword of Nuada Airgetlám, the silver-handed king of the Tuatha Dé Danann, and the sword of Fergus mac Róich, the great warrior of the Ulster cycle, were both legendary weapons with sacred associations, and the surviving decorated examples from the archaeological record suggest that even the practical weapons of the Celtic warrior were regarded as objects of considerable religious significance.
Related Topics
- The Celtic weapons and armor of the warrior elite
- The Celtic metalwork and jewelry of the sword fittings
- The battle tactics of the Celtic armies in which the sword was used
- The Celtic art and craftsmanship of the scabbard and hilt
- The history of the Celtic civilization provides the broader context