A shepherd crossing the Uybat steppe in southern Siberia noticed something unusual after heavy rain. An iron object had emerged from the side of a ravine, where it had apparently remained buried for centuries.
He pulled the object from the soil, damaging part of its outer edging in the process and probably losing some fragments. What he had found was not scrap metal, however, but an exceptionally rare medieval iron shield dating to the Mongol era. The object later entered the collection of the Khakass National Museum of Local Lore, although its precise findspot and original archaeological context can no longer be reconstructed.
Researchers Alexander Poselyanin of Katanov Khakass State University and Oleg Mitko of Novosibirsk State University have now published a detailed study of the shield, discovered in 2019, in Archaeology, Ethnology and Anthropology of Eurasia. Ethnology and Anthropology of Eurasia. Their analysis suggests that the object was not only unusual for southern Siberia but may also reflect the long-distance military and political connections that linked the region with Central Asia and the Near East during the Mongol period.
A heavy shield built from 14 iron plates
The shield is flat and circular, measuring about 65 centimeters across. Its body was constructed from 14 identical segment-shaped iron plates, each more than a millimeter thick, which were joined together with rivets.
Only about 2.8 kilograms of the object survives today, but researchers estimate that the complete shield originally weighed more than four kilograms. Around its outer edge ran an iron binding decorated with a pattern of fine serrations, adding a carefully finished decorative element to what was primarily a piece of defensive equipment.
At the center sits a prominent two-piece iron boss roughly 20 centimeters in diameter. On the inside, the boss incorporated a narrow fitting for a strap, while its visible surface was decorated with rectangular cutouts and openwork crescent-shaped figures with small projections.
The surviving components allowed the researchers to reconstruct both the inner and outer faces of the shield. They also considered how a warrior could have handled it in combat and how it may have been carried while travelling on campaign.
Not a typical Mongol shield
Perhaps the most striking aspect of the find is that an iron shield of this construction does not belong to the equipment normally associated with Mongol warriors.
The researchers instead identify it as the product of a Near Eastern weapons workshop. That interpretation turns the Uybat shield into more than an isolated military object. Its presence deep in southern Siberia points to the movement of weapons, craftsmen or military equipment across enormous distances during the Middle Ages.
Such shields are also exceptionally rare archaeologically. The authors know of only one exact parallel connected with the Mongol conquests.
That shield was excavated nearly 70 years ago at the medieval settlement of Beshtam-Kala on the Zhana-Darya River in the Aral Sea region. Mongol forces destroyed the settlement during their conquest of the northeastern edge of Khorezm in the early 13th century. Archaeologists found the comparable shield near the settlement’s defensive wall, apparently in an area associated with the fighting.
A weapon from a turbulent period
The absence of a secure archaeological context makes it impossible to connect the Uybat shield with a particular battle. The researchers nevertheless place it within a period of internal struggles among the successors of Genghis Khan, conflicts that also drew the peoples of the Sayan-Altai region into wider political and military confrontations.
One possibility brings the shield remarkably close to a specific historical episode. The researchers suggest that its owner could have been either a Kyrgyz or a Mongol warrior serving in the army commanded by Tutuha, the Yuan general whose forces conquered the “Five Tribes” of the Yenisei Kyrgyz in 1293.
The campaign took place during the reign of Kublai Khan, founder of China’s Yuan dynasty, as Yuan forces sought to bring the peoples of southern Siberia more firmly under their control. The shield cannot be tied directly to that campaign, but its date, location and wider historical setting make such an association plausible.
Russian science outlet N+1, which reported the new study, notes that the 1293 campaign is one of the historical events the authors consider when attempting to explain how such an unusual weapon reached the Uybat steppe.
A rare survivor of long-distance connections
Whatever the identity of the warrior who carried it, the shield demonstrates that medieval southern Siberia was not isolated from the political and material networks stretching across Eurasia.
A defensive weapon apparently manufactured in the Near East could ultimately reach the Khakass-Minusinsk region and end up in the hands of a Kyrgyz or Mongol fighter thousands of kilometers away.
For Poselyanin and Mitko, the Uybat shield therefore provides evidence not only of warfare but also of the political and socioeconomic connections linking Central Asia and southern Siberia during the Mongol period.
Poselyanin, A. I., & Mitko, O. A. (2026). A Mongolian age iron shield from the Khakass-Minusinsk region. Archaeology, Ethnology and Anthropology of Eurasia, 54(3), 67–76. https://doi.org/10.17746/1563-0102.2026.54.3.067-076
