What happens to Excalibur scabbard?

Excalibur's scabbard, which is said to grant its wearer invulnerability, is lost after King Arthur’s death. According to legend, after Arthur is mortally wounded, the scabbard is either thrown into a lake or lost in battle. This loss symbolizes the end of Arthur's reign and the fading of his legend. The scabbard's disappearance signifies that even the greatest protection cannot prevent the inevitable passage of time and fate.