Legends and Myths Surrounding the Welsh Dragon

Written by Simon Williams

The Welsh dragon, Y Ddraig Goch, became a national symbol through Merlin's prophecy at Dinas Emrys. When two dragons were uncovered beneath Vortigern's failing tower, the red dragon's victory over the white was interpreted as the Britons' eventual triumph over the Saxon invaders.

Key Facts

• Central legend: Merlin's prophecy at Dinas Emrys, first recorded in the Historia Brittonum (ninth century) and expanded by Geoffrey of Monmouth (c. 1136)
• The dragons: Red dragon (the Britons) and white dragon (the Saxons) found battling beneath Vortigern's failing fortress in Snowdonia
• Archaeological evidence: Excavations at Dinas Emrys in the 1950s confirmed the site as a genuine fifth-century seat of power
• Cadwaladr connection: The seventh-century Welsh king Cadwaladr was the last to formally use the dragon banner before it was revived by the Tudors
• Mabinogion version: In the tale of Lludd and Llevelys, the dragons are buried to silence their screams — a parallel tradition to the Dinas Emrys legend

This article is part of the Welsh Dragon series. Read all articles in the series at historiesandcastles.com/blogs/welsh-dragon.

The Red Dragon of Wales: Y Ddraig Goch

The Welsh Dragon, known as Y Ddraig Goch in Welsh, has long been a symbol of Wales appearing on flags, coats of arms, and architecture across the country. According to ancient myths and medieval legends, this fiery red creature was a harbinger of strife and war, but also a sign of hope and redemption. Tales of its origins are steeped in magic, mystical omens, and Britain's early kingdoms now relegated to legend. The stories tell of great wizards like Merlin, early kings like Vortigern and Cadwaladr, battles between Britons and Saxons, and links to real places scattered across Wales. What is the truth behind this iconic national symbol, the legends that surround it, and the real history that inspired these tales? This article looks into the myths, prophecies, stories and more behind the enduring legend of the Welsh Dragon.

The Story of the Red Dragon

Merlin's Prophecy: Dragons Battling as Omens

One origin story of the red dragon dates back to a prophecy myth involving the great wizard Merlin. According to Geoffrey of Monmouth in his 12th century writings, King Vortigern was trying to build a fortress in Wales when the foundation repeatedly collapsed. His advisers told him that only the blood of a fatherless child sprinkled on the foundation would make it stand.

Merlin was brought before the king as such a child and reported seeing a vision of a red dragon fighting and defeating a white dragon underground where the fortress was to be constructed. This was interpreted as a prophecy of the British defeating the invading Saxons. The red dragon then became a symbol of native British strength against foreign foes. Elements of this story featuring mystical prophecies and visions tie the Welsh Dragon to early kingdoms and real sites like Dinas Emrys where Merlin witnessed the dragons battling beneath the ground.

Cadwaladr and the Dragon as a Fiery Omen

A slightly different version of the red dragon myth features Cadwaladr, the last legendary Welsh king of Britain. In this tale, Cadwaladr has a dream foretelling that the red dragon will appear as a blazing fire - a heavenly sign predicting strife, war, and trouble in the land following his death. The fiery dragon was said to represent the conflicts that would come over who would rule Britain in the chaotic years to come. The myth ties the omen to real 7th century figures like King Cadwaladr of Gwynedd who resisted Northumbrian and Saxon attacks before his kingdom fell. The stories link the Welsh Dragon as an ancient sign foretelling coming violence and upheaval.

The Mabinogion Myths and Meanings

Overview of the Mabinogion

The Mabinogion is a collection of medieval Welsh mythology and folklore that contains some of the earliest prose stories of Britain. Originally an oral tradition, the tales were first compiled around the 12th century, though some elements may date back further. The myths feature mystical and magical creatures, early Celtic and British kings from legend, prophecies, and ancient beliefs now mostly forgotten. Two key stories involving dragons have links to the myths behind Wales' red dragon symbol.

Lludd Llaw Eraint Battles Mystical Dragons

One of the most famous mythological kings in the Mabinogion is Lludd Llaw Eraint, whose name may derive from early Celtic gods of Britain. In one tale, three plagues afflict Lludd's kingdom, two of them involving dragons - one an enormous shrieking beast that terrifies people, and another that settles on their land and causes people to fall into a permanent sleep.

With the help of his brother Llefelys, Lludd manages to trap the dragons and bury them underground, though they continue their slumber near a mythical pool. This story featuring mystical dragons may echo legends of real Welsh kings now obscured behind fantasy, or represent ancient pagan beliefs.

Echoes of Early Legendary Figures

Besides Lludd, other early mystical figures of Welsh and Celtic legend make appearances in the Mabinogion, from Bran the Blessed to Cerridwen the witch. While dragons feature heavily in the myths, the significance behind them was likely lost long ago. Nonetheless they demonstrate links between the later symbol of the proud Red Dragon and ancient stories of magical beasts, prophetic dreams, and early British and Welsh rulers later rendered mythical. The motifs tie the Welsh Dragon to Britain's legendary past.

Dragons in the Time of Geoffrey of Monmouth

Merlin, Vortigern, and Uther Pendragon

The 12th century chronicler Geoffrey of Monmouth compiled early pseudo-histories of Britain that wove mythical tales of King Arthur and Merlin in with real rulers like Aurelius Ambrosius. Many of his stories involve Merlin giving prophecies and mystical visions for early British kings involving dragon motifs.

Besides the Vortigern tale of Cadwaladr seeing dragons battling underground, Geoffrey ties Merlin to other legendary figures like Uther Pendragon, said to be King Arthur's father. Merlin allegedly helped Uther to enter Tintagel Castle in disguise and father Arthur by magical trickery, events later retold in Richard Wagner's Ring Cycle opera. Through his pseudo-histories, Geoffrey brought together mythical tales of Merlin, magical dragons, and early British kings that helped inspire later Arthurian legend.

Dinas Emrys: Dragon Links in Wales Today

Geoffrey of Monmouth claimed that Merlin's prophecies took place at real sites scattered across Wales, lending mystical prestige to actual locations. One is Dinas Emrys in Snowdonia, said to be the hill where Merlin saw the vision of fighting red and white dragons as Vortigern attempted to build his fortress. Today Dinas Emrys is considered a magical and poetic spot drawing tourists intrigued by its legends. Whether Geoffrey invented his histories wholesale or drew from earlier oral traditions remains unclear, but locations like Dinas Emrys show that the legends surrounding the Welsh Dragon involve mystical places tied to real sites that can still be visited today. The dragon myths permeate the landscape.

The Welsh Dragon in Architecture

Dragons in Castles and Symbols

Several enduring castles and architectural sites across Wales prominently feature dragon iconography, symbols, and motifs. Two castles built by Edward I during his conquest of Wales in the 13th century, Caernarfon and Beaumaris, include multiple dragons on their crenellated walls, arches, and towers. Caernarfon's Eagle Tower in particular bears statues of dragons with outstretched wings. Some historians believe these dragons were assertions of English royal power, while others argue the dragon motifs hearkened back to native Welsh princes and their ancient legends. The red dragon also appears on the Tudor Rose flag borne by Henry Tudor at the decisive Battle of Bosworth in 1485 when he seized the English crown, perhaps tapping into its mystique and power.

The Significance of Dragons Over Time

The true significance of dragon imagery in Welsh architecture is much disputed. The motifs could represent the continuing importance of dragons as symbols of Wales through changing eras of power struggles. They may link modern castle-building campaigns back to mythical histories involving prophecy, Merlin, and early British kings. While their meaning is unclear, the prevalence of dragons visually tie this national emblem to real sites scattered across Wales. These symbols likely carried cultural resonance and meaning to both native Welsh and English rulers at different times of history, much as the legends of the fiery Red Dragon have continued capturing popular imagination and pride.

The Ancient Stories Live On

The Welsh Dragon or Y Ddraig Goch has become an iconic national symbol of Wales, appearing on flags and in architecture across the country. But behind this proud emblem lies centuries of legend and myth going back to medieval tales of warring dragons, mystical prophecies, early British and Welsh kings, and the wizard Merlin. The stories tell of magical dragons battling as omens foretelling coming strife, of legendary figures like Lludd Llaw Eraint fighting off mystical plagues and beasts, and real places tied to mystical pasts like Dinas Emrys where Merlin saw the dragons below ground. While fanciful, the myths point to the cultural resonance that dragons have carried in Wales since ancient times. The fiery Red Dragon endures as a symbol of identity and pride forged in the long ago legends and prophecies of a magical landscape. Whether myth or reality, Y Ddraig Goch represents the mystique of Wales and its people through the ages.

Legends Scattered Across the Land

The tales and myths behind the Welsh Dragon are inextricably linked to real places scattered across the country where many key events were said to have unfolded. Sites like Dinas Emrys lend mystique and poetic wonder to the hills and valleys tied to mystical tales of the past. The appearance of dragons on architecture from imposing Norman castles to Tudor battle standards reveal how this symbol endured across the eras, carrying cultural meaning that shifted for Welsh and English rulers alike. By tracing these stories and sites, one can better understand the essence of the Welsh Dragon and its continued importance over centuries of changing rule. The mythical origins of Y Ddraig Goch represent creative connections to a legendary past still echoing today in soaring castle walls and ageless peaks that kindle imaginations.

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Deepen Your Understanding

History rarely happens in isolation. The people, places, and events on this page are part of a much bigger story. The articles below explore the threads that connect to what you have just read — follow whichever pulls at your curiosity.

→ The Welsh Dragon: History of Y Ddraig Goch — The historical origins behind the mythology: from Roman Britain to the Welsh flag

→ The Mythology of the Welsh Dragon — A deeper exploration of the folkloric traditions surrounding the dragon

→ Merlin and the Dragons: The Prophecy of Dinas Emrys — The full story of Merlin's encounter with the red and white dragons beneath Vortigern's tower

→ King Vortigern: The British Ruler Who Lost England — The king at the centre of the founding dragon legend

People Also Ask

How did the Red Dragon become the symbol of Wales?

The red dragon became the symbol of Wales through prophecy, war, and royal endorsement across several centuries. The foundational story, recorded in the ninth-century Historia Brittonum, describes Merlin revealing two fighting dragons beneath Vortigern's failing fortress at Dinas Emrys: the red dragon of the Britons defeats the white dragon of the Saxons, foretelling Welsh survival. Geoffrey of Monmouth expanded this prophecy in the twelfth century, embedding it in the Arthurian tradition through Uther Pendragon. Welsh leaders used the dragon on battle standards throughout the medieval period. Henry VII's use of the red dragon at Bosworth in 1485 gave it royal sanction at the highest level, after which it became the defining Welsh national emblem.

What is the legend of Dinas Emrys?

Dinas Emrys is a rocky hill in Snowdonia that features in one of Wales's founding dragon legends. According to the Historia Brittonum and Geoffrey of Monmouth, the fifth-century British king Vortigern tried to build a fortress there, but the walls repeatedly collapsed. His advisers said he needed a fatherless boy to break the curse. The boy produced was Merlin (Emrys in Welsh), who revealed instead that two dragons — red and white — were fighting in an underground pool beneath the site. Their battle was a prophecy: the red dragon (the Britons) would eventually overcome the white (the Saxons). Archaeological excavations at Dinas Emrys in the 1950s found genuine evidence of fifth-century occupation, including the remains of a pool consistent with the legend.

Does the Welsh Dragon appear in the Mabinogion?

Yes, though under a different mythological framework. In the tale of Lludd and Llevelys, two dragons fight underground and their screaming causes a devastating plague across Britain. King Lludd, advised by his brother Llevelys, traps the dragons in a pit of mead and buries them. The story shares structural elements with the Dinas Emrys legend — underground dragons, a crisis that must be resolved — but has a different cast and a different resolution. The Mabinogion tales were compiled in the twelfth to fourteenth centuries from earlier oral traditions, and the dragon stories within them suggest an older layer of Celtic mythology underlying the more politically focused legends of Merlin and Vortigern.

Why is the white dragon significant?

In the founding dragon legend, the white dragon represents the Anglo-Saxon invaders of Britain. Its battle with the red dragon is explicitly prophetic: the white dragon's early dominance symbolises the Saxon conquest; its eventual defeat represents the future triumph of the native Britons. The white dragon therefore gives the red its meaning — without the white, the red is simply a creature; with the white, it becomes a statement about national survival. Welsh princes fighting Norman and English rule could invoke the red dragon's prophecied victory as justification for resistance. The white dragon also appears in English heraldic tradition, where it was associated with Wessex.

Is there any historical evidence for the dragon symbol?

Yes, at several levels. Archaeological evidence from Dinas Emrys confirms a genuine early medieval site with features consistent with the legendary account. The dragon standard itself has Roman precedent: the draco, used by Roman cavalry units, was a hollow animal head with a fabric tail, adopted by auxiliary units in Britain during the second and third centuries. After Roman withdrawal, this military tradition appears to have continued in post-Roman British forces. The first documentary evidence connecting the dragon explicitly to Welsh identity appears in the ninth-century Historia Brittonum. Fourteenth and fifteenth-century sources record Welsh leaders using the red dragon on battle standards, and Henry VII's use of it at Bosworth in 1485 is well-attested in contemporary records.

How did Henry VII use the Welsh dragon legend to justify his kingship?

Henry Tudor's claim to the English throne was complex, so he emphasised his Welsh descent to strengthen it. Born in Pembroke, he claimed lineage from the ancient Welsh princes, including the legendary Cadwaladr, with whom the red dragon was traditionally associated. Henry marched to Bosworth in 1485 under the red dragon standard, framing his campaign as the fulfilment of Merlin's prophecy: the red dragon (the ancient Britons and the Welsh) finally overcoming the white dragon (here represented by Richard III). After his victory, Henry VII incorporated the dragon into his royal heraldry alongside the English lion and displayed it at his coronation in Westminster Abbey. By invoking the dragon, he connected himself to a mythological lineage that bypassed the recent dynastic conflicts of the Wars of the Roses entirely.

Primary Sources

• Historia Brittonum (c. ninth century), attributed to Nennius — the earliest source for the Dinas Emrys dragon prophecy and Merlin's role in interpreting it
• Geoffrey of Monmouth, Historia Regum Britanniae (c. 1136) — expanded the Dinas Emrys legend into its canonical literary form and linked it to the Arthurian cycle
• The Mabinogion, tale of Lludd and Llevelys (preserved in the Red Book of Hergest, fourteenth century) — an alternative dragon tradition showing the breadth of the mythology
• C.A. Ralegh Radford, excavation report on Dinas Emrys (1960) — archaeological confirmation of fifth-century occupation at the legendary site
• Henry VII's coronation records and wardrobe accounts (1485 to 1509) — contemporary documentation of the red dragon banner at Bosworth and its adoption as a royal Tudor emblem

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