Questing Beast/Beast Glatisant/Glatsaunt

The Questing Beast is a creature known from Arthurian legend. It had the body of a leopard, deer hooves, a serpent neck, and the back legs of a lion. It was named after its cry which sounded like forty dogs barking. It was thought to have been born through the incest of a brother and sister. It was also sometimes referred to as a psychopomp. Several knights attempted to kill the Questing Beast, but it was ultimately killed by the knight Percival. The body of this creature was tossed into a lake, and the water boiled as it sank.

Citations:

Bane, Theresa. Encyclopedia of Beasts and Monsters in Myth, Legend and Folklore. United States, McFarland, Incorporated, Publishers, 2016.