The Gwyllgi ('twilight dog' or 'dog of the dark') haunts remote lanes and roads in Wales, particularly in Pembrokeshire and West Wales. It follows travelers silently and its appearance or gaze could cause paralysis, madness, or death. It is closely related to the broader Black Dog phenomenon found across Britain — a spectral hound linked to death and the devil.
A huge black hound with enormous glowing eyes — described as red or baleful yellow. It appears on desolate roads and paths at night. It sometimes walks silently alongside a traveler before vanishing. Its size exceeds any natural dog.
Its gaze could cause paralysis and lingering illness. Appearing at a crossroads was a death omen for the household of the person who saw it. Could follow silently for miles before making its presence known. Not easily driven off.
Weaknesses
- conditionDo not look directly into its eyes
- ritualReciting a prayer while backing away
Wards
- ritualAvoid remote roads alone at night
- substanceCold iron carried on the person
Adar Llwch Gwin
Legendary large, intelligent birds from Welsh tradition said to understand human speech and obey their master's commands; best known for tearing their master Drudwas ap Tryffin to pieces when bound by a literal order in an Arthurian battle narrative. The term later came to be applied to raptors and metaphorically to brave men in medieval Welsh poetry.
Afagddu
Afagddu (also Avagddu, Y Fagddu) is a figure in Welsh tradition noted for extreme ugliness and associated darkness. He appears in the Taliesin/Ceridwen narrative as the intended recipient of Ceridwen's cauldron of inspiration, and functions as a narrative catalyst within bardic origin material and Welsh triadic/name-list contexts.
Afanc
A named monstrous lake-being from Welsh tradition, the afanc is associated with specific lakes and functions as a dangerous localized supernatural hazard that appears in medieval narrative cycles and later antiquarian and local legends.
Caradoc
Caradoc is a semi-legendary heroic/ancestral figure from Welsh and Arthurian tradition, remembered in medieval genealogies and romances as a ruler of Gwent and as a Knight of the Round Table. He is treated in the sources as a human hero whose life is affected by wondrous events (enchantment, serpent-affliction, knightly tests) rather than as an independently supernatural being.
Cath Palug
A monstrous, unusually large cat from Welsh myth later adapted into continental medieval romance (Anglo‑Norman/Old French) as Chapalu/Capalu. Associated with islands, lakes, bogs, and shoreline liminal zones, it functions as a localized animal horror that confronts named heroes (Welsh Cai/Kay; continental sources often transfer the opponent to King Arthur).
Conan Meriadoc
Conan Meriadoc is a legendary ancestral founder and early medieval royal leader credited in Welsh and Breton tradition with founding Brittany (Llydaw). Presented in medieval literary and genealogical sources as a historicized king or prince associated with Magnus Maximus/Macsen Wledig, he functions primarily as a dynastic progenitor and a figure in brittonic prophetic expectation rather than as a supernatural spirit.
Creiddylad
Creiddylad is a named figure from early medieval Welsh narrative tradition, presented in Culhwch ac Olwen as a noblewoman of Arthur's court and daughter of King Lludd (Lludd Llaw Ereint). In the surviving tale she is the object of rivalry between two warriors whose annual May Day combat for her possession has been interpreted by later writers as a seasonal or 'May Queen' motif.
Cyhyraeth
A Welsh spirit whose groaning, sighing wail presages the death of a family member — heard but never seen, specifically associated with the families of Welsh descent.
Drudwas ap Tryffin
A human warrior and knight associated with Arthurian and medieval Welsh tradition, noted chiefly for possessing three supernatural birds (Adar Llwch Gwin) given to him by his fairy wife; a late tale records that his literal command to those birds led to his death.
Drudwyn
A fabulous wild boar figure attested in Arthurian/Welsh tradition; the sources provided identify the well-known monster Twrch Trwyth as a 'fabulous wild boar' whose hunt is narrated in the Welsh prose romance Culhwch and Olwen. The name 'Drudwyn' appears in the query but is not attested in the supplied source excerpts.
Elffin ap Gwyddno
Elffin ap Gwyddno is a human figure in medieval Welsh tradition, presented as the son of Gwyddno Garanhir and the foster-father who finds and raises the poet-seer Taliesin. He functions as a noble household member whose misfortunes and courtly trials provide the narrative context for Taliesin's prophetic and poetic demonstrations.
Geraint son of Erbin
Geraint son of Erbin (Middle Welsh: Geraint uab Erbin / Geraint mab Erbin) is a medieval Welsh legendary hero celebrated in early Middle Welsh englynion for his deeds at the Battle of Llongborth and later as the protagonist of the prose romance "Geraint and Enid," an adaptation of Chrétien de Troyes' Erec and Enide. He functions in the Welsh literary tradition as a martial exemplar situated in the heroic past rather than as a supernatural being.
Community Record
- [1]The Folk-Lore of West and Mid-Wales. Sikes, Wirt. 1880. British Goblins: Welsh Folk-Lore, Fairy Mythology, Legends and Traditions. Sampson Low.folk
- [2]Black Dog Folklore. Brown, Theo. 1978. 'The Black Dog.' Folklore 69.academic