Tegeingl, in English Englefield,  was a cantref in north-east Wales during the mediaeval period. It was incorporated into Flintshire following Edward I of England's conquest of northern Wales in the 13th century.
The region's name was derived from the Deceangli , an Iron Age Celtic tribe which had inhabited the region and attested since the 1st century BC.
The cantref formed the eastern part of Perfeddwlad (or Y Berfeddwlad) on the northern coast of Wales between the River Clwyd and Deeside. The territory is roughly equivalent to the modern county of Flintshire today.
Comprising the three commotes of Rhuddlan, Prestatyn and Coleshill (Cwnsyllt),  the territory originally formed part of the Kingdom of Gwynedd until, in the late 8th century, it was conquered by the Anglo-Saxon Kingdom of Mercia. It remained under Mercian (or English) control for over three centuries until Dafydd ab Owain Gwynedd recovered it in the 12th century.  Edwin of Tegeingl (d.1073) was in the 11th century described as "lord" or "prince" of Tegeingl.  He was succeeded as lord of Tegeingl by his son Owain who supported the Anglo-Normans' invasion of North Wales in the 1090s.  The family remained powerful in North Wales until Owain's sons were killed in 1125 by a son of Gruffudd ap Cynan, Prince of Gwynedd. 
It then changed hands several times between England and Gwynedd,  but was eventually seized by Edward I as part of his conquest of the Principality of Wales between 1277 and 1283. It was then incorporated into the county of Flintshire by the Statute of Rhuddlan. 
Owain ap Gruffudd was King of Gwynedd, North Wales, from 1137 until his death in 1170, succeeding his father Gruffudd ap Cynan. He was called Owain the Great and the first to be styled "Prince of Wales". He is considered to be the most successful of all the North Welsh princes prior to his grandson, Llywelyn the Great. He became known as Owain Gwynedd to distinguish him from the contemporary king of Powys Wenwynwyn, Owain ap Gruffydd ap Maredudd, who became known as Owain Cyfeiliog.
Gruffudd ap Cynan, sometimes written as Gruffydd ap Cynan, was King of Gwynedd from 1081 until his death in 1137. In the course of a long and eventful life, he became a key figure in Welsh resistance to Norman rule, and was remembered as King of all Wales. As a descendant of Rhodri Mawr, Gruffudd ap Cynan was a senior member of the princely House of Aberffraw.
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 Wales from 1284 until 1536. The Statute introduced English common law to Wales, but also permitted the continuance of Welsh legal practices within the Principality. The Statute was superseded by the Laws in Wales Acts 1535 and 1542 when Henry VIII made Wales unequivocally part of the "realm of England".
The Kingdom of Gwynedd was a Roman Empire successor state that emerged in sub-Roman Britain in the 5th century during the Anglo-Saxon settlement of Britain.
Rhuddlan is a town, community and electoral ward in the county of Denbighshire, Wales — historically in Flintshire. Its associated urban zone is mainly on the right bank of the Clwyd; it is directly south of seafront town Rhyl. It gave its name to the Welsh district of Rhuddlan from 1974 to 1996. At the 2001 Census, the population was 4,296 decreasing to 3,709 as at 2011.
The Kingdom of Powys was a Welsh successor state, petty kingdom and principality that emerged during the Middle Ages following the end of Roman rule in Britain. It very roughly covered the northern two-thirds of the modern county of Powys and part of today's English West Midlands. More precisely, and based on the Romano-British tribal lands of the Ordovices in the west and the Cornovii in the east, its boundaries originally extended from the Cambrian Mountains in the west to include the modern West Midlands region of England in the east. The fertile river valleys of the Severn and Tern are found here, and this region is referred to in later Welsh literature as "the Paradise of Powys".
The Principality of Wales existed between 1216 and 1536, encompassing two-thirds of modern Wales during its height between 1267 and 1277. For most of its history it was ’annexed and united’ to the English Crown except for its earliest few decades. However, for a few generations, specifically the period from its foundation in 1216 to the completion of the conquest of Wales by Edward I in 1284, it was de facto independent under a Welsh prince of Wales, albeit one who swore fealty to the king of England.
Hywel ab Owain Gwynedd, Wales Prince of Gwynedd in 1170, was a Welsh poet and military leader. Hywel was the son of Owain Gwynedd, prince of Gwynedd, and an Irishwoman named Pyfog. In recognition of this, he was also known as Hywel ap Gwyddeles. Hywel was also known as the Poet Prince for his bardic skills.
Bleddyn ap Cynfyn, sometimes spelled Blethyn, was an 11th-century Welsh king. Harold Godwinson and Tostig Godwinson installed him and his brother, Rhiwallon, as the co-rulers of Gwynedd on his father's death in 1063, during their destruction of the kingdom of Bleddyn's half-brother, Gruffydd ap Llywelyn. He became king of Powys and co-ruler of the Kingdom of Powys with his brother Rhiwallon from 1063 to 1075. His descendants continued to rule Powys as the House of Mathrafal.
Powys Fadog was the northern portion of the former princely realm of Powys, which split in two following the death of Madog ap Maredudd in 1160. The realm was divided under Welsh law, with Madog's nephew Owain Cyfeiliog inheriting the south and his son Gruffydd Maelor I, who inherited the north.
Perfeddwlad or Y Berfeddwlad was an historic name for the territories in Wales lying between the River Conwy and the River Dee. comprising the cantrefi of Rhos, Rhufoniog, Dyffryn Clwyd and Tegeingl. Perfeddwlad thus was also known as the Four Cantrefs.
The Kingdom of Dyfed, one of several Welsh petty kingdoms that emerged in 5th-century sub-Roman Britain in southwest Wales, was based on the former territory of the Demetae. The Normans invaded Wales, and by 1138 incorporated Dyfed into a new shire called Pembrokeshire after the Norman castle built in the Cantref of Penfro and under the rule of the Marcher Earl of Pembroke.
This article is about the particular significance of the century 1001–1100 to Wales and its people.
The history of Gwynedd in the High Middle Ages is a period in the History of Wales spanning the 11th through the 13th centuries. Gwynedd, located in the north of Wales, eventually became the most dominant of Welsh kingdoms during this period. Distinctive achievements in Gwynedd include further development of Medieval Welsh literature, particularly poets known as the Beirdd y Tywysogion associated with the court of Gwynedd; the reformation of bardic schools; and the continued development of Cyfraith Hywel. All three of these further contributed to the development of a Welsh national identity in the face of Anglo-Norman encroachment of Wales.
The House of Aberffraw was a cadet branch of the Kingdom of Gwynedd. The establishment of a Royal court in line with the Crown of the King of Wales arose in the 9th century with Rhodri Mawr assigning the Aberffraw Commote as the new location to rule Wales.
Edwin of Tegeingl was a prince or lord of the cantref of Tegeingl in north-east Wales.
Owain ab Edwin of Tegeingl or Owain Fradwr was lord of the cantref of Tegeingl in north-east Wales at the end of the 11th century. He was the son of Edwin of Tegeingl. He sided with the Normans in their failed invasion of North Wales, and in the 1090s attempted to become ruler of Gwynedd.
The conquest of Wales by Edward I, sometimes referred to as the Edwardian Conquest of Wales, to distinguish it from the earlier Norman conquest of Wales, took place between 1277 and 1283. It resulted in the defeat and annexation of the Principality of Wales, and the other last remaining independent Welsh principalities, by Edward I, King of England.
Angharad ferch Owain (1065–1162) was the wife of Gruffudd ap Cynan, a king of Gwynedd.
Cadwallon ap Gruffydd was the eldest son of Gruffudd ap Cynan, king of Gwynedd.