King Pellinore is the king of Listenoise or of "the Isles" in Arthurian legend. In the tradition from the Old French prose, he is associated with the Questing Beast and is the slayer of King Lot. His many children include the sons Aglovale, Lamorak, and Percival, and the daughter Dindrane.

The Questing Beast, or the Beast Glatisant, is a cross-animal monster appearing in many medieval texts of Arthurian legend and modern works inspired by them. In the French prose cycles, and consequently in the quasi-canon of Le Morte d'Arthur, the hunt for the Beast is the subject of quests futilely undertaken by King Pellinore and his family and finally achieved by Sir Palamedes and his companions.