Dafydd ap Gruffudd

Type Figure Region Wales Time c. 1238–1283 Also known as Dafydd ap Gruffudd、Dafydd ap Gruffydd、达菲德·阿普·格鲁菲

Dafydd ap Gruffudd (c. 1238–1283), brother of Llywelyn ap Gruffudd and a Gwynedd nobleman, repeatedly wavered between Wales and England;…

Timeline

1255–1274Gwynedd · GwyneddAs Llywelyn's brother he took part in Welsh power struggles, at times opposing his brother and at one point defecting to the English crown, before being pardoned and returning.
1275–1280Northeast Wales border · WalesAfter Edward I's accession, relations between Wales and England tightened; Dafydd became embroiled in border disputes and territorial quarrels in the 1270s, accumulating tensions for the later full-scale conflict.
1282–1283Shrewsbury · ShropshireIn 1282 Dafydd's attack on Hawarden Castle sparked the war that led to Llywelyn's death; he briefly declared himself prince, was captured in June 1283, and on 3 October was hanged for treason and his body quartered, ending Welsh independent rule.

Oxford Dictionary of National Biography: Dafydd ap Gruffudd https://www.oxforddnb.com/
Rees Davies, The Age of Conquest: Wales 1063-1415 — Rees Davies (2000)