A skeleton from the Middle Ages that was first discovered inside Prague Castle in 1928 and then used as gruesome Nazi propaganda continues to baffle scientists.
The man who lived during the 10th century was buried with a sword and two knives has long been the focal point of a debate that rages between warring academics.
No agreement has been found among experts as to who or what the individual was, despite Hitler's government claiming the remains 'proved' the castle was Germanic.
The skeleton made another bizarre appearance later, when the Soviets tried to pull the same trick the Nazis and claim it was of Soviet origin.
The latest analysis says it could be a Slav from a neighbouring region, 'who had mastered Old Norse as well as Slavonic' or he may have been a legitimate Viking
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The man who lived during the 10th century was buried with a sword and two knives (pictured)has long been the focal point of a debate that continues to rage between academics
Pictured: Moving the burial block of grave to the Prague Castle storerooms in 1928. The skeleton would become he focal point for one of the darkest mysteries in the history of 21st century archaeology
Pictured: Prague Castle during the visit of Heinrich Himmler in 1941. On 11 July 1928, the remains of a male were discovered under the courtyard of Prague Castle
A new study published in the journal Antiquity looked at all previous analysis and theories to try and reach a conclusion.
However, the authors failed to bring any clarity to the murky picture.
The authors could not conclude for definite the origin of the bones but were able to give some clarity to possible explanations.
They write: '[The] material culture is a mix of foreign (i.e. non-Czech) items, such as the sword, axe and 'fire striker' (a common piece of Viking equipment), and domestic objects, such as the bucket and the knives'.
They also reveal that the sword is especially unique as it is the only one discovered in 1,500 early medieval graves so far found in Prague Castle.
It is possible, they say, that the individual was a Slav from a neighbouring region, 'who had mastered Old Norse as well as Slavonic' or he may have been a legitimate Viking.
On 11 July 1928, the remains of a male were discovered under the courtyard of Prague Castle.
A project to excavate the region led by the National Museum intended to study the earliest phases of the Castle stumbled across the skeleton for the first time.
The body was located on the edge of an old burial ground from when a hill fort was built on the site, likely dating to AD 800–950/1000.