Hywel Dda

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Hywel Dda
King of Dyfed, Powys and Gwynedd
Prince of Seisyllwg and Deheubarth
Laws of Hywel Dda (f.1.v) King Hywel cropped.jpg
Mid-13th-century depiction of Hywel Dda in a Latin copy of the Laws of Hywel Dda.
Predecessor Idwal Foel ap Anarawd
Bornc. 880
SpouseElen ferch Llywarch
Issue Owain ap Hywel
Rhodri ap Hywel
Edwin ap Hywel
House House of Dinefwr
Father Cadell ap Rhodri
Map of the extent of Hywel Dda's power
Deheubarth, Hywel Dda's Kingdom
Combine to form Morgannwg Wales 900-950 (Hywel the Good).svg
Map of the extent of Hywel Dda's power
  Deheubarth, Hywel Dda's Kingdom
  Combine to form Morgannwg

Hywel Dda, sometimes anglicized as Howel the Good, or Hywel ap Cadell (c.880 – 948) was a King of Deheubarth who eventually came to rule most of Wales. He became the sole king of Seisyllwg in 920 and shortly thereafter established Deheubarth, and proceeded to gain control over the entire country from Prestatyn to Pembroke. [1] As a descendant of Rhodri Mawr through his father Cadell, Hywel was a member of the Dinefwr branch of the dynasty. He was recorded as King of the Britons in the Annales Cambriae and the Annals of Ulster .


Hywel is highly esteemed among other medieval Welsh rulers. [2] His name is particularly linked with the codification of traditional Welsh law, which were thenceforth known as the Laws of Hywel Dda. The latter part of his name (Dda, lit. “Good”) refers to the fact that his laws were just and good. The historian Dafydd Jenkins sees in them compassion rather than punishment, plenty of common sense and recognition of the rights of women. [2] Hywel Dda was a well-educated man even by modern standards, having a good knowledge of Welsh, Latin, and English. [2]

The office building and original home of the Senedd is named Tŷ Hywel (“Hywel House” or “Hywel's House”) in honour of Hywel Dda. The original Assembly chamber, now known as Siambr Hywel (“Hywel's Chamber”), is used for educational courses and for children and young people's debates. The local health board of south-west Wales also bears his name.

Early life

Hywel was the son of King Cadell of Seisyllwg. He had a brother, Clydog, who was probably the younger of the two. Hywel was later reputed to have married Elen, the supposed heiress of King Llywarch of Dyfed, which connection was subsequently used to justify his family's reign over that kingdom.

Hywel's father Cadell had been installed as King of Seisyllwg by his father, Rhodri the Great of Gwynedd, following the drowning of the last king in the traditional line, Gwgon, in 872. After Gwgon's death, Rhodri, husband to the dead king's sister Angharad, became steward of his kingdom. This gave Rhodri no standing to claim the kingship of Seisyllwg himself, but he was able to install his son Cadell as a subject king. Cadell died around 911, and his lands in Seisyllwg appear to have been divided between his two sons Hywel and Clydog.


Hywel probably already controlled Dyfed by the time he assumed his father's lands in Ceredigion. No king is recorded after the death of Llywarch in 904, and Hywel's marriage to Llywarch's only surviving heir probably ensured that the kingdom came into his hands. [3] Hywel and Clydog seem to have ruled Seisyllwg together following their father's death and jointly submitted to Edward the Elder of England in 918. [3] However, Clydog died in 920, evidently leaving the whole realm to Hywel. Hywel soon joined Seisyllwg and Dyfed into a single realm known as Deheubarth. [3] This became the first significant event of his reign. [4]

In 926 or 928 Hywel made a pilgrimage to Rome, becoming the first Welsh prince to undertake such a trip and return. [5] [6] Upon his return he forged very close relations with Æthelstan of England. From the outset Athelstan's intention was to secure the submission of all other kings in Britain; unusually, Hywel embraced submission to England and used it to his advantage whenever possible. [7] In 934, Hywel supported Æthelstan's invasion of Scotland. Later in his reign, he was able to leverage his close association with Athelstan and the English crown to great effect in his ambitions within Wales. [8]

In 942 Hywel's cousin Idwal Foel, King of Gwynedd, determined to cast off English overlordship and took up arms against the new English king, Edmund. Idwal and his brother Elisedd were both killed in battle against Edmund's forces. By normal custom Idwal's crown should have passed to his sons, but Hywel intervened. He sent Iago and Ieuaf into exile and established himself as ruler over Gwynedd, which also likely placed him in control of the Kingdom of Powys, which was under the authority of Gwynedd. As such Hywel became king of nearly all of Wales except for Morgannwg and Gwent in the south. [9]

In 943 Hywel's wife Elen died. [5]

Hywel's reign was a violent one, but he achieved an understanding with Athelstan of England whereby Athelstan and Hywel ruled part of Wales jointly. Such was the relationship between the neighbouring countries that Hywel was able to use Athelstan's mint at Chester to produce his own silver pennies.


Statue of Hywel Dda at Cardiff City Hall Hywel Dda at Cardiff City Hall.jpg
Statue of Hywel Dda at Cardiff City Hall

Following Hywel's death in 948, [5] his kingdom was soon split into three. Gwynedd was reclaimed by the sons of Idwal Foel, while Deheubarth was divided between Hywel's sons.

A Welsh text of the Laws of Hywel Dda from 14th century F. 65r. Dragon.jpg
A Welsh text of the Laws of Hywel Dda from 14th century
An artist's impression of Hywel Dda. 1909 Hywell Dda (PB02300).jpg
An artist's impression of Hywel Dda. 1909

Hywel’s name is associated with the laws of Medieval Wales, which are commonly known as the Laws of Hywel Dda (Welsh: Cyfraith Hywel). None of the law manuscripts can be dated to Hywel’s time, but Hywel’s name is mentioned in the prologues to the laws. These describe how Hywel gathered expert lawyers and priests from each commote in Wales together in Tŷ Gwyn ar Daf (which is thought to have been close to Whitland, Carmarthenshire) in order to revise and codify the Laws of Wales. The story in the prologues lengthens with time, with more details in the later versions of the prologue. It seems highly unlikely that this meeting actually took place, with the purpose of the prologues being to emphasize the royal and Christian origin and background to the laws, and that in the face of criticism of the laws from outside Wales especially during John Peckham’s period as Archbishop of Canterbury. Nevertheless, his name continued to be associated with Welsh law which remained in active use throughout Wales until the appointed date of implementation of the Laws in Wales Acts 1535–1542 of Henry VIII of England who asserted his royal descent by blood-line from Rhodri Mawr via Hywel Dda. [10]

Opinions vary as to the motives for Hywel's close association with the court of Athelstan. J.E. Lloyd claimed Hywel was an admirer of Wessex, [11] while D.P. Kirby suggests that it may have been the action of a pragmatist who recognized the realities of power in mid-10th century Britain. [12] It is notable that he gave one of his sons an Anglo-Saxon name, Edwin. His policies with regard to England were evidently not to the taste of all his subjects. Athelstan and Hywel had similar interests. They both developed a coinage; they both had a kingdom; both were attributed a Law book. Hywel was aware of the greater power and acceded to it.

A Welsh language poem entitled Armes Prydein , considered by Sir Ifor Williams to have been written in Deheubarth during Hywel's reign, called for the Welsh to join a confederation of all the non-English peoples of Britain and Ireland to fight the Saxons. The poem may be linked to the alliance of Norse and Celtic kingdoms which challenged Athelstan at the Battle of Brunanburh in 937. No Welsh forces joined this alliance, and this may well have been because of the influence of Hywel. On the other hand, neither did he send troops to support Athelstan.


See also

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  1. Hanes Cymru by John Davies, Penguin Books; Page 85
  2. 1 2 3 Hanes Cymru by John Davies, Penguin Books; Page 86
  3. 1 2 3 Lloyd, p. 333.
  4. Lloyd, pp. 333–334.
  5. 1 2 3 "Chronicle of the Princes". Archaeologia Cambrensis. 3. W. Pickering. X: 20–25. 1864 via Google Books.
  6. Lloyd, p. 334.
  7. Lloyd, p. 335–336.
  8. Lloyd, p. 336.
  9. Lloyd, pp. 337–338.
  10. Hanes Cymru by John Davies, Penguin Books
  11. John Edward Lloyd (1911). A history of Wales: from the earliest times to the Edwardian conquest. Longmans, Green & Co.
  12. D. P. Kirby, Hywel Dda: Anglophile?, Welsh Historical Review, 8 (1976-7)


Hywel Dda
Dinefwr Dynasty
Born: 880? Died: 950
Preceded by
Idwal Foel
King of the Britons
Succeeded by
Dyfnwal ab Owain
Preceded by
Idwal Foel
Prince of Gwynedd
Succeeded by
Iago ab Idwal
Ieuaf ab Idwal
Preceded by
Llywarch ap Hyfaidd
King of Dyfed
Kingdoms merged
Preceded by
Cadell ap Rhodri
Prince of Seisyllwg
New title
Created out of Dyfed and Seisyllwg
Prince of Deheubarth
Succeeded by
Owain ap Hywel
Rhodri ap Hywel
Edwin ap Hywel
Preceded by
Llywelyn ap Merfyn
King of Powys