Reginald de Braose

Reginald de Braose (died June 1228) was one of the sons of William de Braose, 4th Lord of Bramber and Matilda, also known as Maud de St. Valery and Lady de la Haie. Her other children included William and Giles.

The de Braoses were loyal to King Richard I but grew in power under King John of England. The dynasty was in conflict with King John towards the end of his reign and almost lost everything.

Reginald de Braose was a scion of the powerful Marcher family of de Braose, helped manage its survival and was also related by marriage to the Welsh Princes of Wales.

He supported his brother Giles de Braose in his rebellions against King John. Both brothers were active against the King in the Baron's War. Neither was present at the signing of Magna Carta in June 1215 because at this time they were still rebels who refused to compromise.

King John acquiesced to Reginald's claims to the de Braose estates in Wales in May 1216. Reginald became Lord of Brecon, Abergavenny, Builth and held other Marcher Lordships but was also very much a vassal of the Welsh leader Llewelyn Fawr, Prince of Gwynedd who had become his father-in-law in 1215 when Reginald married Llywelyn's daughter, Gwladus Ddu.

Henry III restored Reginald to favour and the Bramber estates (confiscated by King John) in 1217.

At this seeming betrayal, Rhys and Owain, Reginald's Welsh nephews who were Princes of Deheubarth, were incensed and took Builth, except the castle. Llywelyn Fawr also became angry and his forces besieged Brecon. Reginald eventually surrendered to Llewelyn and gave up Seinhenydd (Swansea).

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