The following list shows the faithful animals of gods or mortals, such as horses and dogs that are found in the popular myths and legends.
Please note this is not a list of monsters and giants.
It should also be pointed out that there are Welsh legends associated with the Arthurian legend, so I kept all animals found in Celtic Welsh literature. Also, a number of animals from French literature are sometimes mentioned in the Arthurian literature, and for that reason, I saw no reason to exclude them here.
Companion
Animal Type
Owners
Myth Origin
Bel Joeor
horse
Tristan
Celtic/Arthurian
Berring
horse
Lancelot
Arthurian
Cabal/Cavall
dog
Arthur
Welsh/Arthurian
Ceingalad
horse
Gwalchmei (Gawain)
Celtic/Welsh
Chesnut Long-Neck
(Lively Steed of Britain)
horse
Kai (Kay)
Celtic/Welsh
Cloven-Hoof
(Plundered Horse of Britain)
horse
Owain (Yvain)
Celtic/Welsh
Drudwyn
horse
Mabon
Celtic/Welsh
Dun-Grey
(Pack-Horse of Britain)
horse
Rhydderch Hael
Celtic/Welsh
Gringalet, Gringolets
horse
Gawain
Arthurian
Gringuljete with the Red Ears
horse
Lahelin, Orilus, Urjan, Lischois, Gawan (Gawain)
Arthurian
Gwynn Dun Mane
horse
Mabon, Gweddw
Celtic/Welsh
Husdant
dog
Tristan
Celtic/Arthurian
Lion the Merciless
parrot
Arthur (in the Knight of the Parrot)
Arthurian
Llamrei
mare
Arthur, Caw of Scotland
Celtic/Arthurian
Pale Yellow of the Stud
(Bestowed Horse of Britain)