:Meurig ab Ithel

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Meurig ab Ithel or Idwal was an 8th-century king of part of Glywysing in southern Wales.

Meurig's father was Idwal or Ithel ap Morgan, (c. 690, reign 710–745), king of Glywyssing, Gwent, and Ergyng. Ithel ap Morgan had been in sole possession of both Gwent and Glywysing (i.e., Morgannwg).{{Cite book |last=Lloyd |first=John Edward |url=https://archive.org/details/historyofwalesfr01lloyuoft?view=theater |title=A history of Wales from the earliest times to the Edwardian conquest |date=1911 |publisher=London, New York [etc.] Longmans, Green, and co. |others=Kelly - University of Toronto |access-date=30 April 2025}}

Meurig's paternal grandfather was Morgan the Generous, or Benefactor (Mwynfawr in Welsh), also known as Morgan ab Athrwys (d. c. 665/710), King of Glywysing.{{Cite web |title=MORGAN MWYNFAWR (fl. 730), ' the Benefactor ', or MORGAN ab ATHRWYS, king of Morgannwg {{!}} Dictionary of Welsh Biography |url=https://biography.wales/article/s-MORG-MWY-0730 |access-date=2025-04-30 |website=biography.wales}} He may have been the namesake of the later realm of Morgannwg (whence the modern name for Glamorgan is derived), although his descendant Morgan the Old is a more likely possibility.{{Cite ODNB |last=Thornton |first=David E. |url=https://doi.org/10.1093/ref:odnb/19210 |title=Morgan Hen [Morgan Mawr] (d. 974), king of Morgannwg |date=2004-09-23 |series=Oxford Dictionary of National Biography|doi=10.1093/ref:odnb/19210 }}{{Cite ODNB |title=Morgan Hen [Morgan Mawr] (d. 974), king of Morgannwg |url=https://www.oxforddnb.com/display/10.1093/ref:odnb/9780198614128.001.0001/odnb-9780198614128-e-19210 |access-date=2025-04-30 |date=2004 |language=en |doi=10.1093/ref:odnb/19210 |last1=Thornton |first1=David E. }} Meurig's grandmother may have been Ricceneth, and he had an uncle named Gwyddnerth.{{Cite book |last=Charles-Edwards |first=T. M. |url=https://books.google.com/books?id=AK_yn7Q3_x0C&q=ithel&pg=PA306 |title=Wales and the Britons, 350-1064 |date=2013 |publisher=OUP Oxford |isbn=978-0-19-821731-2 |language=en |access-date=30 April 2025}}

Meurig was the great grandson of Athrwys ap Meurig and possibly Cenedlon ferch Briafael Frydig, and the great-great grandson of King Meurig ap Twedrig and Onbrawst, daughter of Gwrgan Fawr, the last King of Ergyng. This is thought to be how Ergyng became part of the territorial holdings of the family.{{Cite ODNB |title=Morgan ab Athrwys (d. c. 665/710), king of Glywysing |url=https://www.oxforddnb.com/display/10.1093/ref:odnb/9780198614128.001.0001/odnb-9780198614128-e-19209 |access-date=2025-04-30 |date=2004 |language=en |doi=10.1093/ref:odnb/19209}}

Meurig is recorded in charters, including giving gifts to Bishop Cadwared of Llandaff. He is recorded as giving the church property jointly with his father Idwal and brother Ffernfael ap Ithel. Meurig is also recorded as having sold a uilla to Iddon, son of Ceirio in conjuction with his father and brothers Ffernfael, Rhodri and Rhys, who are recorded as witnesses on the charter. These documents were later used as proof of the donors' ownerships when donating the land to the church at Llandaff.

Meurig's father Idwal ap Morgan seems to have inherited his father Morgan's realm including lands in Gower, Glamorgan, and Gwent, and probably sovereignity of most of the region between the River Loughor and the River Wye as a whole. It is thought that he then divided it among his many sons: Ffernfael in Gwent and Rhys, Rhodri, and Meurig in parts of Glywysing. Ergyng (now in western Herefordshire in England was apparently lost to the Saxon kingdom of Hwicce around this time. Alternatively, Ffernfael's brothers Rhodri and Rhys and his nephew Brochfael may have inherited in turn, but lost Gwent to Ffernfael (died c. 775) for a time.{{Cite web |date=2011-10-01 |title=Kingdoms of Cymru Celts - Gwent |url=http://www.historyfiles.co.uk/KingListsBritain/CymruGwent.htm |access-date=2025-04-30 |archive-url=https://web.archive.org/web/20111001064705/http://www.historyfiles.co.uk/KingListsBritain/CymruGwent.htm |archive-date=1 October 2011 }}

John Edward Lloyd noted that the Kingdom of Glywysing at this time was "involved in much obscurity". It was eventually united by the line of Meurig's brother Rhys ap Ithel during the reign of King Hywel ap Rhys (Glywysing) or his sons Arthfael and Owain ap Hywel (Glywysing).