The Excalibur of Valencia: an Islamic sword beneath the city

Archaeologists unexpectedly uncovered a sword embedded in the ground beneath an old house in Valencia’s historic centre.

Three decades later, fresh analysis has shown that this weapon, nicknamed the “Excalibur” because of the way it was found, is more than a curious discovery. It has revived discussion about the Muslim presence on the Iberian Peninsula and indicates an unmistakably Islamic origin.

A sword beneath the city, a past below the surface

The so-called “Excalibur of Valencia” was unearthed in 1994 during excavations in the city’s old quarter, at a house built above successive Roman, Visigothic and medieval layers of occupation. The blade had been driven vertically into the earth, evoking the celebrated scene from the legend of King Arthur. This prompted the nickname, which was subsequently adopted by archaeologists.

The precise findspot lies close to the former Roman forum, an area that concentrated urban activity during the Empire. Every new building project opens small windows onto this history-laden ground. In one such window, the sword emerged in a comparatively good state of preservation, to the specialists’ surprise.

The Excalibur of Valencia has become a key object for understanding the extent to which Islamic culture shaped weapons, cities and warfare in medieval Spain.

Despite the object’s singular nature, the artefact remained in storage for decades and was catalogued only incompletely. Its precise origin remained unresolved. Only recently did Valencia’s municipal archaeological service, SIAM, choose to re-examine material in its collection for its 75th anniversary. The sword has consequently returned to the spotlight.

From mystery to laboratory: confirming its Islamic origin

Archaeologist José Miguel Osuna led the new investigation. Applying modern methods, including spectroscopy and a detailed study of the metallurgy, the team dated the object to the 10th century. At that time, the region belonged to Al-Andalus, the extensive Muslim-ruled territory in what are now Spain and Portugal.

The findings settled the uncertainty: it was neither a later Christian weapon nor a reused Roman example, but a sword made in an Islamic setting during the Andalusian caliphal era.

The bronze guard, the shape of the blade and the quality of the metal alloy form a set typical of armoury associated with the Caliphate of Córdoba.

The guard, decorated with bronze plates and paired with a subtly curved blade, immediately drew attention. Together with the forging method, these features match other weapons connected with Córdoba’s Umayyad dynasty. This was the missing element linking the “Excalibur of Valencia” to the Islamic military tradition.

What the Excalibur of Valencia is like

The sword is approximately 45 centimetres long, placing it in the short-weapon category and making it suitable both for close combat and for mounted warriors.

Main characteristics

• Approximate total length: 45 cm
• Slightly curved blade, enabling cutting strikes while in motion
• Guard with bronze plates, both decorative and functional
• Design associated with the cavalry of Al-Andalus
• An unusual state of preservation for Valencia’s acidic soil

The blade’s gentle curve points to a use typical of horsemen. Blows delivered from horseback required weapons that could cut and be withdrawn swiftly without becoming lodged in the target. This principle occurs across several cavalry traditions, from the Islamic world to Central Asia.

One feature considered almost “miraculous” by specialists is the metal’s preservation. Valencia’s soils are acidic and generally hasten corrosion. Yet the sword has survived in a condition that permits detailed analysis, suggesting that the precise place where it was deposited provided a favourable microenvironment, perhaps linked to a burial structure that has since vanished.

Comparison with other Al-Andalus weapons

According to SIAM, this is the first sword of its kind from Valencia’s Islamic period. Only one direct parallel is known: an example recovered during excavations at Medina Azahara, the palatine city built by Abd al-Rahman III near Córdoba.

Characteristic	Excalibur of Valencia	Sword of Medina Azahara
Dating	10th century	10th century
Political context	Al-Andalus under caliphal rule	Caliphate of Córdoba
Guard style	Ornamented bronze	Bronze with similar decoration
Likely use	Cavalry	Elite cavalry

This parallel strengthens the interpretation of the Valencia sword as the product of sophisticated armoury, linked to political and military networks radiating from Córdoba across the Peninsula.

Al-Andalus in focus: warfare, science and coexistence

Al-Andalus existed from 711 to 1492 and covered much of the Iberian Peninsula. The territory began with the Muslim invasion and became established with the creation of an independent emirate in 756 under Abd al-Rahman I. That emirate would later become a caliphate, with Córdoba as its capital.

The region developed into a centre of learning where Muslims, Christians and Jews lived alongside one another. Physicians, philosophers and astronomers worked in dialogue with Greek and eastern legacies. Figures such as Averroes and Maimonides left a profound mark on European philosophy and theology.

The same society that produced treatises on medicine and astronomy also developed weapons suited to new forms of combat and military organisation.

The Valencia sword belongs within this setting of circulating techniques and knowledge. Its advanced metallurgy, functional design and the urban context of Valencia itself reveal a society marked by intense exchanges among workshops, cities and different ethno-religious groups.

Valencia as a Mediterranean crossroads

During its Islamic period, Valencia used its Mediterranean coastal position as a transit point between the Maghreb, the Middle East and Christian Europe. Goods, enslaved people, ideas and technologies passed through its port before continuing inland along overland routes.

The sword reinforces this image of a connected city. Its type suggests links with models used elsewhere in the caliphate, perhaps travelling with troops, merchants or political envoys.

Local cultural authorities stress that the object helps people see Valencia not merely as a conquered city, but as a beacon of Islamic culture in the European context, with a lasting influence on architecture, urban planning and even language.

Terms and concepts that help explain the discovery

What Al-Andalus was in practice

In current historiography, Al-Andalus does not refer merely to a “foreign dominion”, but to a complex reality involving mixed populations and identities. In many regions, local elites converted to Islam, while Christian and Jewish groups retained their own practices under varying agreements.

The Valencia sword is a tangible object from this prolonged encounter. It may have been wielded by an Arab, Berber or Hispanic warrior who had converted to Islam, either in internal conflicts or in confrontations with the northern Christian kingdoms.

How this sword may have been used in combat

In practical terms, a short curved sword such as this could have been deployed in situations including:

• rapid cavalry clashes against lightly protected infantry;
• ambushes and skirmishes on narrower ground close to walls;
• hand-to-hand fighting in urban settings during sieges and the capture of cities.

Its size made it easier to handle in confined spaces, something less feasible with very long swords. The curvature encouraged effective cuts while moving, increasing lethality against opponents with light protection.

Present-day impacts: from academic research to cultural tourism

An object such as the Excalibur of Valencia can influence everything from university discussions about the chronology of local Islamisation to museum projects and tourist itineraries. Simpler narratives that set “Christian Spain” against “Muslim invaders” lose force in the face of objects demonstrating the depth of Islamic presence in cities.

For a wider audience, the combination of a nickname associated with Arthurian legend and confirmation of an Islamic origin makes for a highly compelling story. Exhibitions, guided tours and educational activities can use this ambiguity as a starting point for discussing myths, identities and the layers of history that remain beneath our feet in so many European cities.