Morgannwg House, Glamorgan Street, Brecon (geograph 4247694).jpg

Morgannwg was a medieval Welsh kingdom formed via the merger of the kingdoms of the Kingdom of Glywysing and the Kingdom of Gwent.

Formation of Morgannwg

First under King Morgan the Generous (fl. ) until the end of the reign of his descendant Ithel (d. c. 745), and later again under King Morgan the Old (r. 942-74), the kingdom merged with Gwent and changed its name to Morgannwg or Gwlad Morgan in honour of the Morgan Kings.Ashley, Mike (1998) ''The Mammoth Book of British Kings and Queens '' (Carol & Graf)Lloyd, John E. ''A History of Wales from the Earliest Times to the Edwardian Conquest'', Vol. 1
p. 274
Longmans, Green, & Co. (London), 1911. Accessed 22 Feb 2013. During such unions Glywysing and Gwent seem to have been together or occasional sub-kingdoms or principalities of the Kingdom of Morgannwg.

After the death of Morgan the Old, Gwent and Glywysing were separated again from 974 to 1055, but Glywysing alone was often referred to as Morgannwg. Both areas were conquered by Gruffydd ap Llywelyn in about 1055, subsequently King of Wales, but on Gruffydd's death in 1063, Glywysing was regained by the native lineage under Caradog ap Gruffudd. Morgannwg, the union between Gwent and Glywysing, was reconstituted. How this occurred is unclear; possibly the Kings of Glywysing were also Kings of Morgannwg and the Kings of Gwent were semi-independent under-Kings, or vice versa.

Norman conquest

With Gwent increasingly overrun by the Norman conquest of Wales, the last native King of Morgannwyg and Glywysing was Iestyn ap Gwrgan (1081–1090), who was subsequently deposed by Robert Fitzhamon. Iestyn's sons became Lords of Afan, while Owain ap Caradog ap Gruffudd contented himself with Gwynllwg and founded the line of the Lords of Caerleon.

The name ''Morgannwg'' is still used in Wales for the former Marcher Lordship and county of Glamorgan (itself a corruption of the term ''Gwlad Morgan'') and its successor counties

List of rulers

The kingdom of Morgannwg was formed by the union of the kingdoms of Morgannwg and Gwent. Over time, in a few instances, the kingdoms were separate and independent.

Glywysing

* Eugenius, son of Magnus Maximus

* Marius, son of Eugenius

* Solar, son of Marius

* Glywys, son of Solar (c. 470–c. 480), who gave his name to the kingdom

** Gwynllyw, son of Glywys, ruler of Gwynllwg (c. 480–523), cantref of Glywysing

** Pawl (Welsh king), Pawl, son of Glywys, ruler of Penychen (c. 480–540), cantref of Glywysing

** Mechwyn, son of Glywys, ruler of Gorfynydd (c. 480–c.500), cantref of Glywysing

* Cadoc, son of Gwynllyw, ruler of Gwynllwg (523–580) and Penychen (540–580), died without heirs

''Glywysing is ruled by the Kings of Gwent until Rhys ap Ithel''

* Rhys ap Ithel/Rhys ab Idwal, son of the Kings of Gwent (c. 755–785), with brothers, Rhodri ab Idwal (Glywysing), Rhodri and Meurig ab Ithel, Meurig

* Arthfael Hen ap Rhys (Arthfael the Old) (785–c. 825) with Brochfael ap Rhys

* Rhys ap Arthfael, (c. 830–c. 840)

* Hywel ap Rhys (Glywysing), Hywel ap Rhys, (c. 840–886)

* Owain ap Hywel (Gwent), Owain ap Hywel (886–)

** Gruffydd ab Owain (–934) King of Gower

** Cadwgan ab Owain (–950) King of West Glywysing

* Morgan the Old (Morgan Hen ab Owain, Morgan Hen or Morgan ab Owain or Moragn Hen Fawr) (930–974) ''united the former kingdoms of Gwent and Glywysing in 942 under the name of Morgannwg, but they were broken up again immediately after his death, remaining separate until about 1055''

* Morgan the Old's son, Owain ap Morgan (974–c. 983)

* brothers of Owain ap Morgan (Idwallon, Hywel and Cadell) (dates unknown)

* his son, Rhys ab Owain (c. 990–c. 1000) ''who ruled Glywysing jointly with his brothers''

* Ithel the Black, son Idwallon (990)

** Hywel ab Owain (c. 990–c. 1043) ''and''

** Iestyn ab Owain (c. 990–c. 1015)

* his son, Rhydderch ap Iestyn (c. 1015–1033)

* his son, Gruffydd ap Rhydderch (1033–1055)

* Gwrgant ab Ithel the Black (1033 - 1070)

* Gruffydd ap Llywelyn, invader and prince of Gwynedd (1055–1063)

* Gruffydd ap Rhydderch's son, Caradog ap Gruffydd (1063–1081) ''who was a subject of the King of Gwent and King of Morgannwg Cadwgan ap Meurig before he deposed him and took the kingdom for himself''

* Iestyn ap Gwrgant, Iestyn ap Gwrgan(t) (1081–1091)

''Iestyn was the last ruler of an independent Morgannwg, which was thereafter in the possession of the Norman dynasty, Normans and became the lordship of Glamorgan''

Gwent

* Anwn Ddu (the same person as ruled Dyfed at this time). Welsh legend claims he was appointed by Magnus Maximus, who later became Roman Emperor (and hence referred to in Welsh as ''Macsen Wledig'' - ''Maximus the Emperor''). Some genealogies claim him to be Magnus' son. His realm was divided upon his death between his sons Edynfed and Tudwal.

; in Caer-Went

* Edynfed ap Anwn - also ruler of Dyfed

* ap Ednyfed, and his wife - St Madrun ferch Vortimer, Gwerthefyr (Welsh rendering of ''Honorius'')

* Iddon ap Ynyr (480 - 490)

* Caradoc, Caradog (Strongarm)

* Meurig ap Caradog and his wife - Dyfwn ferch Glywys

* Erbic ap Meurig ?

; in Caer-Leon

* Tudwal ap Anwn

* Teithrin ap Tudwal

* Teithfallt ap Teithrin (Welsh rendering of ''Theudebald'')

* Tewdrig, son of Teithfallt (490 – 493/517) (Welsh rendering of ''Theodoric''). Traditionally, Tewdrig had a daughter - Marchell verch Tewdrig - for whom he carved out Brycheiniog as a dowry.

* Meurig ap Tewdrig King of Gwent (493/517 – 530–540)

* Athrwys ap Meurig King of Gwent (530–540 - 573)

* Frioc ap Meurig, with Idnerth ap Meurig ?

* Ithel ap Athrwys

* Morgan the Great ?

* Morgan the Courteous and Benefactor ? (-654)

* Anthres ap Morcant ? (654-663)

* Morgan ab Athrwys, Morgan the Generous (-730)

* Ithel ap Morgan (710/715 - 735/740/745/755)

* Ffernfael ab Idwal (-774/777)

* Athrwys ap Ffernfael (774-810)

* Idwallon ap Gwrgant (810-842)

* Ithel ap Hywel or ap Athrwys ?(842-848)

* Meurig ap Hywel or ap Ithel ? (848-849)

* Meurig ap Arthfael Hen (849-874)

* Ffernfael ap Meurig (874-880)

* Brochfael ap Meurig (880-920)

* Arthfael ap Hywel (-916/927)

* Owain ap Hywel (Glywysing), Owain ap Hywel (920-930)

* Cadell ap Arthfael (930-940/943)

* Morgan Hen ab Owain, Morgan the Old, Morgan Hen or Morgan ab Owain or Morgan Hen Fawr (940/943–955) ''united the former kingdoms of Gwent and Glywysing in 942 under the name of Morgannwg but they were broken up again immediately after his death and remained separate until about 1055''

** Nowy ap Gwriad ap Brochfael ap Rhodri ap Arthfael Hen ''ruled Gwent'' (c. 950–c. 970) ''while Glywysing was ruled jointly by brothers of Owain ap Morgan (dates unknown), probably under Morgan the Old''

* his son, Arthfael ap Nowy (about 970–983)

* his cousin, Rhodri ap Elisedd (983–c. 1015) ''who ruled jointly with his brother,''

* Gruffydd ap Elisedd (983–c. 1015)

* his cousin (?) Edwyn ap Gwriad (1015–1045)

* Hywel ab Owain's son, Meurig ap Hywel (1045–1055) ''who ruled jointly with''

* his son, Cadwgan ap Meurig (1045–1055)

* Gruffydd ap Llywelyn, invader and prince of Gwynedd (1055–1063)

* Cadwgan ap Meurig (1063–1074) ''who was also King of Morgannwg, ruling Glywysing through''

* Gruffydd ap Rhydderch's son, Caradog ap Gruffydd (1075–1081) ''who seized Gwent and the Kingdom of Morgannwg''

* Iestyn ap Gwrgant, Iestyn ap Gwrgan(t) (1081–1091)

''Iestyn was the last ruler of an independent Morgannwg, which was thereafter in the possession of the Norman dynasty, Normans and became the lordship of Glamorgan''

* Owain ap Caradog (1081-1113/1116)

References

{{Welsh kingdoms
History of Glamorgan
History of Monmouthshire