The Wyvern of Wye was a dragon-like creature from River Wye that terrorised the West Country sometime during the lifetime of King Arthur.

Sir Cadogan, one of the Knights of the Round Table, bravely engaged the creature in combat. The Wyvern, however, was too strong for Cadogan, and it managed to eat Cadogan's horse, break his wand, and melt his sword and visor with fire before Cadogan could escape.

Cadogan and the Wyvern then had a second, shorter encounter after Cadogan managed to procure another mount, an overweight pony that was grazing in a nearby meadow. The Wyvern bent its head to try to gobble up the knight and his new steed, but Cadogan's damaged, misfiring wand stabbed the Wyvern's tongue and ignited the fumes from its stomach, causing the beast to explode.

Behind the scenes

  • The wyvern is a mythological creature similar to the dragon, often distinguished from the latter by only having two wings and a single pair of limbs while a dragon is supposed to have two wings and four limbs, this would mean that all the dragons shown throughout the series are technically Wyverns.
  • Sir Cadogan has a portrait at Hogwarts.