*Dafydd ap Llywelyn
born about 1209 Caernarvonshire, Wales
died March 1246

father:
*Llywelyn "Mawr""the Great" ap Iorwerth King of Gwynedd & Powys
born 1173 Caernarvonshire, Wales
died 11 April 1240 Aberconwy, Caernarvonshire, Wales

mother:
*Joan Princess of England
born about 1188 London, Middlesex, England
died February 1237 Aberconwy,Arllechwedd Isaf,Caernarvonshire,Wales
buried Llan-faes,Dindaethwy,Anglesey,Wales

siblings:
*Angharad verch Llywelyn born about 1212 Caernarvonshire, Wales
*Helen (Elen) verch Llewelyn born about 1230/34 Wales
3 other sisters

spouse:
*Isabella de Braose
(end of information)
(see notes below)

children:
*Llywelyn "Rhuddla" ap Dafydd
born Rhuddlan, Flintshire, Wales

biographical and/or anecdotal:

notes or source:
LDS
The source for the wifehood of Isabella de Braose has her born in 1238 and married in 1231 and the daughter of William de Braose who died in 1230. Some caution is urged here.