Overview
Owain ap Gruffudd ( 23 or 28 November 1170) 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", and the "Prince of the Welsh". 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 (, "Owain of Gwynedd") to distinguish him from the contemporary king of Powys Wenwynwyn, Owain ap Gruffydd ap Maredudd, who became known as Owain Cyfeiliog.
Early life
Owain Gwynedd was a member of the House of Aberffraw, the senior branch of the dynasty of Rhodri the Great. His father, Gruffudd ap Cynan, was a strong and long-lived ruler who had made the principality of Gwynedd the most influential in Wales during the sixty-two years of his reign, using the island of Anglesey as his power base. His mother, Angharad ferch Owain, was the daughter of Owain ab Edwin of Tegeingl. Owain Gwynedd was the second son of Gruffydd and Angharad. His elder brother, Cadwallon, was killed in fighting in Powys in 1132 against Meirionnydd.
Owain is thought to have been born on Anglesey about the year 1100, he was Gruffudd ap Cynan's second child, grandchild of Owain ab Edwin of Tegeingl via his mother Angharad ferch Owain. By about 1120 Gruffydd had grown too old to lead his forces in battle and Owain and his brothers Cadwallon and later Cadwaladr led the forces of Gwynedd against the Normans and against other Welsh princes with great success. His elder brother Cadwallon was killed in a battle against the forces of Powys in 1132, leaving Owain as his father's heir. Owain and Cadwaladr, in alliance with Gruffydd ap Rhys of Deheubarth, won a major victory over the Normans at Crug Mawr near Cardigan in 1136 and annexed Ceredigion to their father's realm.
Accession to the throne and early campaigns
On behalf of his father, Gruffydd ap Cynan, Gwynedd directed military operations to the "cantrefs of Meirionydd, Rhos, Rhufoniog, and Dyffryn Clwyd to Gwynedd proper", and it was against the Normans, with Rhys ap Gruffydd he secured a victory at the Battle of Crug Mawr and the temporary occupation of Kingdom of Ceredigion. On Gruffydd's death in 1137, Owain inherited a portion of a well-established kingdom, but had to share it with Cadwaladr.
From Wikipedia (CC BY-SA 4.0).