At the Montesiepi Chapel in Siena , Italy , there is a strange artefact that will be instantly conversant to rooter of Arthurian caption and anybody who has see Disney’sThe Sword in the Stone , being that it is a literal steel embedded inside astone . According to a chemical analysis of the artifact , it is probably from the right time period rather than a late impostor .

The legend around the sword say that it was the weapon of Galgano Guidotti , a remorseless knight born in 1148 who give-up the ghost on to become a Catholic saint . grant to the narrative – which largely comes from the canonization mental process which took place shortly after his death – Galgano ’s father died betimes in Galgano ’s puerility .

A disaffected child , Galgano fell in with a sorry crowd . In today ’s term , that might mean mass doing drugs , but at the metre thismeantparticipating " very eagerly in internal wars top by local lords of Gherardesca , Pannocchieschi and others , moult blood of his neighbors " .

Galgano continued in this way for years , savour the violence , before one 24-hour interval falling off his horse and have a religious revelation , convert shortly afterward to Christianity . accord to legend , he abandoned his groom-to-be and set about ahermit’slife , all the while being served visions nagging at him to build a hermitage of his own .

Galgano was said to have squeeze his old sword into the stone , a symbolisation of how he was forsake his violent life . Rather than work like a stone , it " yielded like butter " according to versions of thelegend , leaving the hilt start from the top and the tip poking out the other end of the rock . Since then , the sword has remained in the pit , now housed inside the Rotunda in Siena , Tuscany .

As nonsensical as that sounds , there is a bit of a curveball coming up – in the physique of scientific analysis . In 2001 , pharmacist Luigi Garlaschelli examined the artifact and find a number of surprising details , while dispelling the myth that the brand was a late fake .

" The trend of the blade is consistent with that of other alike weapons from the same time , " Garlaschelliwroteat the time , " we can even label it as an Xa - type brand , distinctive of the later 12th century " .

Garlaschelli retrieved samples of the sword from within the rock via a gob practise into it and submitted them for analysis .

" Although iron artifact can not be unequivocally dated , " he wrote , " the composition of the metal did not divulge that modern metal had been used , and so it is full compatible with a mediaeval origin " .

Further analysis added weight to the blade being an authentic artifact from the sentence of Galgano ’s aliveness .

" We compared the ' fingerprints ' of trace elements within the sword ’s metal with that of pieces of iron slag that can still be find around the great abbey of St. Galgano . This dross is the waste from the small foundries used by the monks to manufacture their small atomic number 26 objects , using local iron ore , " Garlaschelli explained .

Weirder still , a pair of mummified arm obligate near the sword – said to be those of thieves who had tried to take the endocarp , before being strike down by god ~ were also carbon - dated back to the twelfth century . Meanwhile , it was also determined that the hilt pop out of the rock and the sword steel underneath areone piece .

As annoying as it is , it remains a mystery precisely how the sword make in there , beyond vague legends that the I. F. Stone somehow work into butter .