An ancient sword known as the French version of King Arthur’s legendary “Excalibur” has mysteriously vanished from the town where, according to local lore, it had remained lodged in a rock for 1,300 years.

The Durandal sword appears to have been taken by a thief from its stone in the tiny medieval town of Rocamadour, where it was one of the town’s main attractions, The Telegraph reported.

For centuries it’s been believed the sword once belonged to Roland, a semi-legendary knight who bravely fought for Charlemagne in the eighth century.