Which knight threw the sword Excalibur into the lake?

Sir Bedivere threw King Arthur’s sword Excalibur into the lake.

In the best-known medieval versions, Arthur is mortally wounded after the Battle of Camlann and commands Bedivere to return Excalibur to its supernatural source. Bedivere initially hesitates because the sword is too valuable to cast away, but after Arthur reprimands him, he finally throws it into the water.

A hand rises from the lake, catches the sword, and pulls it beneath the surface. This supernatural sign confirms that Excalibur has been returned to the Lady of the Lake. Bedivere then remains with Arthur during the king’s final journey toward Avalon and later enters a religious life in some versions.

The detail varies across Arthurian literature. In certain French romances, the returning knight is Griflet, and the Welsh figure associated with Bedivere is Bedwyr. Thomas Malory’s Le Morte d’Arthur, however, firmly popularized Bedivere as the knight who returns Excalibur. That is the canonical answer for a general English-language quiz.