"and Caledfwlch my sword"
Sir Bedivere returning Excalibur to the lake
Public DomainSir Bedivere returning Excalibur to the lake - Credit: Aubrey Beardsley

Caledfwlch is the Welsh name for King Arthur’s sword Excalibur.

In Malory’s Morte d’Arthur, Excalibur is given to Arthur by The Lady of the Lake, and returned to her by Bedivere when Arthur is mortally wounded at the Battle of Camlan.

There is, separately, the famous story of Arthur pulling a sword from a stone, the feat that confirmed him as king. This anonymous sword is not to be confused with Excalibur.