Dafydd ap Llewelyn ap Hywel, better known as Dafydd Gam, anglicized to David or Davy Gam, was a Welsh warrior, a prominent opponent of Owain Glyndŵr.
He died at the Battle of Agincourt fighting for Henry V, King of England in that victory against the French.
Sir Dafydd Gam's coat of arms; from an extra-illustrated set of A tour in Wales by Thomas Pennant in the National Library of Wales
Agincourt battlefield and memorial
Owain ap Gruffydd, commonly known as Owain Glyndŵr or Glyn Dŵr, was a Welsh leader, soldier and military commander in the Late Middle Ages, who led a 15-year-long revolt with the aim of ending English rule in Wales. He was an educated lawyer, forming the first Welsh parliament under his rule, and was the last native-born Welshman to claim the title Prince of Wales.
Owain Glyndŵr
The site of Owain Glyndŵr's court at Sycharth, Powys. Only a large mound now remains after the building was burnt down by the future King Henry V in 1403.
Monument to Owain Glyndŵr's victory at the Battle of Mynydd Hyddgen in 1401
Depiction of Owain Glyndŵr in battle by Arthur Cadwgan Michael