Owain Brogyntyn ap Madog (fl.

Floruit

Floruit , abbreviated fl. , is a Latin verb meaning "flourished", denoting the period of time during which something was active...

 1186) was the youngest and illegitimate son of king Madog ap Maredudd

Madog ap Maredudd

Madog ap Maredudd was the last Prince of the entire Kingdom of Powys, Wales and for a time held the Fitzalan Lordship of Oswestry.Madog was the son of Maredudd ap Bleddyn and grandson of Bleddyn ap Cynfyn. He followed his father on the throne of Powys in 1132...

, the last king of a united kingdom of Powys. He was the son of Madog by the daughter of the Maer du or "black mayor" of Rûg

Rug

RUG or rug can mean:* carpet, a textile floor covering that is made from various materials.** specifically, one made by rug making* slang for toupee* rug , to keep domesticated animals warm and/or dry...

 in Edeyrnion. He was the brother of Gruffydd Maelor

Gruffydd Maelor

Gruffydd Maelor was Prince of Powys Fadog in Wales.He is known as Gruffydd Maelor I to distinguish him from his grandson, Gruffydd Maelor II .- Lineage :He was a son of Madog ap Maredudd by Susanna, daughter of Gruffudd ap Cynan...

 the ancestor of Owain Glyndŵr

Owain Glyndwr

Owain Glyndŵr , or Owain Glyn Dŵr, anglicised by William Shakespeare as Owen Glendower , was a Welsh ruler and the last native Welshman to hold the title Prince of Wales...

. Presumably Owain Brogyntyn would have been raised by his mother at Rûg in Edeyrnion. He was acknowledged by his father and granted by him the lordship of Edeyrnion and also Dinmael

Dinmael

Dinmael was a medieval lordship and cwmwd in north Wales which usually formed a part of the patrimony of the kingdom of Powys. The name, of Old Welsh origin, means "the King's Fort" and probably refers to a now forgotten early Welsh fortress.The name survives in the name of a rural community in...

. It is quite possible that he inherited some of these lands through his maternal grandfather, the Maer Du, which were confirmed and perhaps extended by his father the king of Powys. At some point he also came into possession of Castle Brogyntyn

Castle Brogyntyn

Brogyntyn Castle is a ruin of a native Welsh castle found close to Selattyn, Shropshire, England, on the Anglo-Welsh border. It is thought the castle was built, or at least owned, by Owain Brogyntyn, a 12th Century prince of the kingdom of Powys. Very little of the castle now remains...

 on the English borders at Selattyn

Selattyn

Selattyn is the name of a village close to Oswestry in Shropshire, England, on the Anglo-Welsh border.The village, which is considerable, is situated near Offa's Dyke, which bounds the parish on the West...

 close to Oswestry

Oswestry

Oswestry is a town and civil parish in Shropshire, England, close to the Welsh border. It is at the junction of the A5, A483, and A495 roads....

.

Owain first married Jonet verch Hywel (whose ancestor was Athelstan Glodrudd of the Fifth Royal Tribe

Fifteen Tribes of Wales

The five royal tribes of Wales and The fifteen tribes of Gwynedd refer to a class of genealogical lists which were compiled by Welsh bards in the mid-15th century. These lists were constructed on the premise that many of the leading Welsh families of their time could trace their descent to the...

) but with her had no children. He next married Marred ferch Einion ap Seisyllt who was to be the mother of his three sons.

His youngest son, Iorwerth ab Owain Brogyntyn, married Efa verch Madoc the sole heir of Madoc, Lord of Mawddwy (the younger son of Gwenwynwyn, prince of Powys Wenwynwyn

Powys Wenwynwyn

Powys Wenwynwyn or Powys Cyfeiliog was the southern portion of the former princely state of Powys which split following the death of Madog ap Maredudd of Powys in 1160...

). The son of Iorwerth and Efa, Gruffudd ab Iorwerth, was confirmed in his lands as Baron of Edeyrnion by Edward I under the terms of the Statute of Rhuddlan

Statute of Rhuddlan

The Statute of Rhuddlan , also known as the Statutes of Wales or as the Statute of Wales provided the constitutional basis for the government of the Principality of North Wales from 1284 until 1536...

 by which England organised the subjugation of Wales.

According to Philip York writing in 1799 a cup and a dagger belonging to Owain Brogyntyn were preserved at Rûg

Rug

RUG or rug can mean:* carpet, a textile floor covering that is made from various materials.** specifically, one made by rug making* slang for toupee* rug , to keep domesticated animals warm and/or dry...

 in Edeyrnion. Later accounts in the National Gazetteer dated 1868 state that a cup and dagger in the possession of "Colonel Vaughan of Rhug" were once owned by another Owain of Powys, the much later Owain Glyndŵr

Owain Glyndwr

Owain Glyndŵr , or Owain Glyn Dŵr, anglicised by William Shakespeare as Owen Glendower , was a Welsh ruler and the last native Welshman to hold the title Prince of Wales...

. These objects, whoever the original owner, may sadly now be lost.

The direct patrilineal descendants of Iorwerth ab Owain Brogyntyn survived at least until the beginning of the 20th century and are known to genealogy

Genealogy

Genealogy is the study of families and the tracing of their lineages and history. Genealogists use oral traditions, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kinship and pedigrees of its members...

 as the Hughes of Gwerclas

Hughes of Gwerclas

Hughes of Gwerclas were a native Welsh royal family descended from Owain Brogyntyn the illegitimate but acknowledged son of Madog ap Maredudd by a daughter of the "Maer du" or "black mayor" of Rûg in Edernion. His father granted to him and his successors the Cantref of Edeyrnion and the Lordship...

family.