By  Periklis  Deligiannis

Byzantine Kosovo

Modern researchers of medieval military history often wonder what was the nature of the Byzantine weapon called ‘rhomphaia’.
The rhomphaia (or rhomphaea) of Antiquity was a weapon of the Thracians, which consisted of a long straight or slightly curved (sickle-shaped) blade mounted on a long wooden shaft. If the rhomphaia was sickle-shaped, the cutting edge was located on the inner (concave) side of the blade. Especially the curved rhomphaia belonged to the group of spears and swords with scythe blade (kopis, machaira, falcata, falx etc) which were used by various peoples of the ancient Mediterranean (Iberians, Celtiberians, Greeks, Thracians, Etruscans, Lycians, Carians, Lydians, Phrygians, Dacians and others). Their original source is unknown and sometimes the researchers try to locate it. My opinion is that they are products of polygenesis.
The ancient Greeks and then the Romans used units of Thracian rhomphaioforoi (rhomphaia-bearers), allies and mercenaries, but they never adopted this weapon. But until the Byzantine period, the Thracians were absorbed ethnologically to the Roman and then to the Byzantine (Eastern Roman) ethnic environment by becoming Latin-speaking north of the Balkan Mountains and Greek-speaking south of the same ridge, loosing their own ethnic identity. Thus the rhomphaioforoi combatants were incorporated ethnologically to the Romans and the Greeks through Latinization and Hellenization respectively. During the Byzantine Period, the word rhomphaia appears in the Byzantine military terminology posing the aforementioned question.


Some examples of long swords in Byzantine frescoes, icons and manuscripts, that can be classified as rhomphaiae (in the plural). The opening image of this article comes from a Byzantine church in Kosovo and depicts a spathion (σπαθίον), a straight long sword. The other two images depict parameria (slightly curved long swords). Their collective name seems to have been ‘rhomphaiae’.
We believe that the rhomphaia as perceived by the Byzantine Greeks, was mainly the typical curved or straight sword (of various types) whose main feature was the large blade length. If there is a doubt that the rhomphaia could be a straight sword as well (because nowadays the term is usually – and falsely – associated with curved blades), I note the fact that some ancient Thracian rhomphaiae had a straight blade.
As inferred from archaeological and literary evidence, some Hellenized Thracians of the Byzantine army continued to use the rhomphaia proper (ancient rhomphaia) up to the Middle Byzantine period, but this is mere evidence, not a proof. Probably the Byzantine term ‘rhomphaia‘ represented equally the Thracian rhomphaia proper as well as the very long sword of any type in which the blade was strongly reminiscent of (or equated with) the blade of the Thracian rhomphaia. Specifically after the final disappearance of the ancient Thracian rhomphaia during the Early or even in the Middle Byzantine period, the Byzantines finally gave its name to those rhomphaia-like swords.
This ascertainment is reinforced by the fact that in the oldest literary sources the rhomphaia is described or implied as a spear, but with the passage of the centuries it is described or implied as a sword (gradually in Plutarch, Eustathius, Hesychius, Luke and in John’s Book of Revelation). Especially in the ecclesiastical texts, the word rhomphaia symbolizes the divine and fair punishment of the unjust and the sinful, a punishment that is usually manifested by the actions of angels. Considering that the angels are depicted in icons and iconographies in churches, very often as swordsmen (and never bearing ancient rhomphaiae), we have another indirect testimony on the evolution of the rhomphaia from a spearoid (spear-like) weapon to a long sword. This long sword could be a spathion (σπαθίον) which is the straight one, or a paramerion (παραμήριον) which is the slightly curved sword (saber).


Straight and slightly curved blades of ancient Thracian  rhomphaiae, from excavations.



Modern restoration of a Dacian falx, a weapon closely related to the ancient Thracian rhomphaia. The cutting edge lies on the inner (concave) side of the blade.
Especially the curved saber of Asiatic origin that the Byzantines adopted from the Eurasian nomads (with whom they were in contact throughout their whole history) and which evolved to the paramerion, had the cutting edge on the opposite (outer convex) side of the ancient rhomphaia but it was very reminiscent of it in shape and thus the Byzantines had no difficulty calling this saber ‘rhomphaia’ as well. For the same reason, the same applies to the European falchion (which never became popular to the Byzantines, not counting their Western European mercenaries). But mostly the same goes for some straight swords of Western European origin, which were also described satisfactorily (from the Byzantine point of view) with the term ‘rhomphaia‘, because they were very long and handled with both hands (exactly like the Thracians handling their own rhomphaia). These swords were reminiscent of the straight ancient rhomphaiae as well as to their way of use, because they were used equally for a piercing blow (and not only for cutting) as those rhomphaiae.

14th century Macedonia

Byzantine 13th century

Two more examples of Byzantine rhomphaiae (spathion and paramerion respectively).
Finally, I also note the Byzantine Greek tendency to archaism in the national, political and military terms, e.g. they often used to call Scythians the Sarmatians, the Huns, the Turkic peoples and generally the nomads, sometimes they used to call Gauls or Celts generally the Western Europeans etc, while the use of Latin military terms which no longer had their actual Roman/Latin meaning, is well known. The Byzantine rhomphaia was very probably one of those cases of archaism.

Although the word rhomphaia  had military origins, in the Byzantine age it was  rather a general and usually non-military literal and mostly ‘spiritual’ term (see above: the Angels, the punishment of the unjust and the sinful etc.) coming from Antiquity and not a pure military term. This is why there is no an actual example from the various Byzantine Taktika and Strategika of what was the rhomphaia’ , thereby posing this frequently asked question among the scholars.
It seems that every non-spearoid cutting weapon that was long and relatively heavy was called collectively ‘rhomphaia’; especially by the non-militants, ie the clergy, the courtiers, princesses like Anna Comnene scholars like M. Psellos, and others. The terms spathion,  paramerion and several others seem to have been the pure military terms for these cutting weapons that were generally described as ‘rhomphaiae’  by militant and non-militant Byzantines alike.
Periklis  Deligiannis



Plutarch: Parallel Lives: Timoleon – Aemilius Paulus

Eustathius of Thessalonica:  commentaries on Homer

Hesychius of Alexandria: Lexicon

Luke’s Gospel

John’s Book of Revelation

Michael Psellos: Chronography

Anna Comnena: Alexiad