Battle of Brecon

There are multiple rumours about the death of Rhys, some say that he was slain on the battlefield and that Brecon Priory (now Brecon Cathredral) was constructed where he fell. Other sources claim that he was slain at Penrhys south of Brecon. It is more likely that he was slain near where Brecon Cathedral is today. Rhys Ap Tewdr was buried at Strata Florida Cathredral. It is most likely that his body was moved from his resting place to the abbey (It is possible he was originally buried at Penrhys or Brecon and then moved). After the battle of Brecon the Marcher Lords where able to conquer and take parts of southern Wales; Bernard de Neufmarché gave land to multiple of his victorious knights who won the battle including a certain knight by the name of “ Sir Reynold Awbre”. (There were 13 knights in total who aided Bernard in his conquest of Brecon, Awbre being one of those.) After the battle was won the Normans decided to strengthen their hold over Wales and built multiple castles, including Brecon Castle,^[4] Tredustan castle, Crickhowell Castle, Urishay Castle and Snodhill Castle.

• Bernard de Neufmarché, Lord of Brecon and Hereford.
• Sir Reynold Awbre/Aubrey, Sire of Abercynfig and Slwch (Slough in Powys)^[5][6]
• Sir John Scull,^[7] Sire of Bryn Bolgoed and Crai
• Sir Peter Gunter, Sire of Gunterstone (perhaps modern Gileston)
• Sir Humphrey Ffergill (Burghill/Burchill), Sire of Crickhowell ^[8]
• Sir Miles Piegard (Picard) Sire of Ischergrog and founder of Tretower castle
• Sir John Waldebieffe (Waldegrave), Sire of Lanbanffoag
• Sir Humphrey Sollers, Sire of Tredustan and Dorstone castle (perhaps built the earthworks and the motte remnants at Tredustan)^[9][10]
• Sir Richard de Boyes (De Bois)^[11] Sire of Treboyer
• Sir Walter Havard^[12][13] Sire of Defynnog and Pontwilyim (Possible ancestor to John Havard, founder of Harvard)
• Sir Hugh Surdnan, Sire of Aberisker
• Sir Philip Walwin (Walwyn), Sire of the Hay, created Hay castle (specifically Hay Tump Castle, an earthwork which was the original castle of Hay, before being abandoned and the castle moved to the present site).
• Sir Richard Paglin^[14] Sire of the manor of Peytyns

• Rhys Ap Tewdr, King of Deheubarth
• Bleddyn Ap Maenyrch, King of Brycheiniog (Brecon)^[15]
• Multiple Welsh archers (unnamed)

Both sides had many more participants, however there names have not been recorded, the rest of the participants were probability peasants (Welsh peasants and English peasants), who would have been the ground forces.