Dafydd and his son Owain were captured together at Nanhysglain near to Bera Mawr in the uplands above Abergwyngregyn on 21 June 1283.
King Edward I of England then issued orders for the apprehension of the primogeniture of Dafydd ap Gruffudd.
On 29 June, Llywelyn ap Dafydd was arrested and taken to Rhuddlan to be imprisoned alongside his brother.
A force of cavalry and infantry were deployed to escort Llywelyn and Owain out of Gwynedd via Acton Burnell in Shropshire to Bristol before the end of July 1283.
Llywelyn ap Dafydd died at Bristol Castle in 1287 and was buried in the nearby Dominican church (now known as Quakers Friars).