Blodeuwedd or Blodeuedd, (Middle Welsh

Middle Welsh language

Middle Welsh is the label attached to the Welsh language of the 12th to 14th centuries, of which much more remains than for any earlier period. This form of Welsh developed from Old Welsh....

 composite name from blodeu 'flowers, blossoms' + gwedd 'face, aspect, appearance': "flower face"), is the wife of Lleu Llaw Gyffes

Lleu Llaw Gyffes

Lleu Llaw Gyffes is a hero of Welsh mythology. He appears most prominently in the Fourth Branch of the Mabinogi, the tale of Math fab Mathonwy, which tells the tale of his birth, his marriage, his death, his resurrection and his accession to the throne of Gwynedd...

 in Welsh mythology

Welsh mythology

Welsh mythology, the remnants of the mythology of the pre-Christian Britons, has come down to us in much altered form in medieval Welsh manuscripts such as the Red Book of Hergest, the White Book of Rhydderch, the Book of Aneirin and the Book of Taliesin....

, made from the flowers of broom

Broom (shrub)

Brooms are a group of evergreen, semi-evergreen, and deciduous shrubs in the subfamily Faboideae of the legume family Fabaceae, mainly in the three genera Chamaecytisus, Cytisus and Genista, but also in many other small genera . All genera in this group are from the tribe Genisteae...

, meadowsweet

Meadowsweet

Filipendula ulmaria, commonly known as Meadowsweet, is a perennial herb in the family Rosaceae that grows in damp meadows. It is native throughout most of Europe and Western Asia...

 and the oak

Oak

An oak is a tree or shrub in the genus Quercus , of which about 600 species exist. "Oak" may also appear in the names of species in related genera, notably Lithocarpus...

 by the magicians Math and Gwydion

Gwydion

Gwydion fab Dôn is a magician, hero and trickster of Welsh mythology, appearing most prominently in the Fourth Branch of the Mabinogi, which focuses largely on his relationship with his young nephew, Lleu Llaw Gyffes...

, and is a central figure in the fourth branch

Math fab Mathonwy (Branch)

; "Math, the son of Mathonwy" is a legendary tale from medieval Welsh literature and the final of the four branches of the Mabinogi. It tells of a vicious war between the north and the south, of the birth of Lleu Llaw Gyffes and Dylan ail Don, of the tyngedau of Arianrhod, and of the creation of...

 of the Mabinogi

Four Branches of the Mabinogi

The Four Branches of the Mabinogi are the best known tales from the collection of medieval Welsh prose known as the Mabinogion. The word "Mabinogi" originally designated only these four tales, which are really parts or "branches" of a single work, rather than the whole collection...

.

Role in Welsh tradition

The hero Lleu Llaw Gyffes has been placed under a tynged

Tynged

A tynged is the Welsh equivalent of the Irish geis, the most famous of which were those that Arianrhod placed on her son Lleu Llaw Gyffes in the fourth of the Four Branches of the Mabinogi, the Mabinogi of Math fab Mathonwy....

by his mother Arianrhod

Arianrhod

Arianrhod is a figure in Welsh mythology who plays her most important role in the Fourth Branch of the Mabinogi. She is the daughter of Dôn and the sister of Gwydion and Gilfaethwy; the Welsh Triads give her father as Beli Mawr...

 that he may never have a human wife. So as to counteract this curse, the magicians Math and Gwydion:
Some time later, while Lleu is away on business, Blodeuwedd has an affair with Gronw Pebr, the lord of Penllyn

Penllyn

Penllyn is a former civil parish in the Welsh county of Gwynedd. The parish was created in 1894 from the part of Criccieth parish that lay outside the ancient borough. It was abolished in 1934, and divided between Llanystumdwy and Criccieth....

, and the two conspire to murder Lleu. Blodeuwedd tricks Lleu into revealing how he may be killed, since he can not be killed during the day or night, nor indoors or outdoors, neither riding nor walking, not clothed and not naked, nor by any weapon lawfully made. He reveals to her that he can only be killed at dusk, wrapped in a net with one foot on a cauldron and one on a goat and with a spear forged for a year during the hours when everyone is at mass. With this information she arranges his death.
Struck by the spear thrown by Gronw's hand, Lleu transforms into an eagle

Eagle

Eagles are members of the bird family Accipitridae, and belong to several genera which are not necessarily closely related to each other. Most of the more than 60 species occur in Eurasia and Africa. Outside this area, just two species can be found in the United States and Canada, nine more in...

 and flies away. Gwydion tracks him down and finds him perched high on an oak tree. Through the singing of an englyn

Englyn

Englyn is a traditional Welsh and Cornish short poem form. It uses quantitative metres, involving the counting of syllables, and rigid patterns of rhyme and half rhyme. Each line contains a repeating pattern of consonants and accent known as cynghanedd.- The Eight Types :There are eight types of...

 (known as englyn Gwydion) he lures him down from the oak

Oak

An oak is a tree or shrub in the genus Quercus , of which about 600 species exist. "Oak" may also appear in the names of species in related genera, notably Lithocarpus...

 tree and switches him back to his human form. Gwydion and Math nurse Lleu back to health before mustering Gwynedd and reclaiming his lands from Gronw and Blodeuwedd.

Gwydion overtakes a fleeing Blodeuwedd and turns her into an owl

Owl

Owls are a group of birds that belong to the order Strigiformes, constituting 200 bird of prey species. Most are solitary and nocturnal, with some exceptions . Owls hunt mostly small mammals, insects, and other birds, although a few species specialize in hunting fish...

, the creature hated by all other birds, proclaiming:
The narrative adds:
Meanwhile, Gronw escapes to Penllyn and sends emissaries to Lleu to beg of his forgiveness. Lleu refuses, demanding that Gronw must stand on the bank of the River Cynfael and receive a blow from his spear. Gronw desperately asks if anyone from his warband

Warband

Warband may refer to:* Local warrior society of Celts, Germans or Africans* Warband , a sub-breed of wargames* Warband , a British band* Mount&Blade: Warband, an extension for the video game Mount&Blade....

 will take the spear in his place, but his men refuse his plea. Eventually, Gronw agrees to receive the blow on the condition that he may place a large stone between himself and Lleu, who allows him to do so before throwing the spear with such strength that it pierces the stone, killing his rival. A holed stone in Ardudwy

Ardudwy

Ardudwy is an area of Gwynedd in north-west Wales, lying between Tremadog Bay and the Rhinogydd. Administratively, under the old Kingdom of Gwynedd, it was first a division of the sub kingdom of Dunoding and later a cantref in its own right...

 is still known as Llech Ronw

Llech Ronw

Llech Ronw, or the Slate of Gronw, is a holed stone located along Afon Bryn Saeth in Blaenau Ffestiniog, Wales. The stone is described as being roughly forty inches by thirty inches with a hole of about an inch in diameter going through it.-History:Llech Ronw was discovered by Frank Ward in 1934...

(Gronw's Stone).

Robert Graves

Robert Graves

Robert von Ranke Graves 24 July 1895 – 7 December 1985 was an English poet, translator and novelist. During his long life he produced more than 140 works...

 and others consider one section of the poem Cad Goddeu

Cad Goddeu

Cad Goddeu is a medieval Welsh poem preserved in the 14th-century manuscript known as the Book of Taliesin. The poem refers to a traditional story in which the legendary enchanter Gwydion animates the trees of the forest to fight as his army...

to be a "Song of Blodeuwedd".