In Arthurian lore, there seems to be a slight hiccup as Excalibur appears to be the name of two separate swords King Arthur owned. They are the Sword in the Stone, and the Sword in the Lake.

The Durandal sword, often likened to King Arthur's Excalibur in French lore, has vanished after being lodged in a rock for 1,300 years. Believed to have been wielded by the semi-legendary knight ...