*Margaret verch Llewelyn
born 1202 Caermarvonshire, Wales
died 1263

father:
*Llewelyn "Mawr" "The Great" ap Iorwerth King of Gwynedd & Powys
born 1173 Aberffraw Castle, Caernarvonshire, Wales
died 11 April 1240 Aberconwy, Arllechwedd Isaf, Caernarvonshire, Wales

mother:
*Tangwystl verch Llywarch
born about 1168 Rhos, Denbighshire, Wales

siblings:
*Gwladys "Ddu" verch Llewelyn born before 16 April 1205 Caernarvonshire, Wales
died 1251 Windsor, Berkshire, England
Gruffudd ap Llywelyn born before 16 April 1205 Caernarvonshire, Wales died 1 Mar 1244

spouse:
*John de Braose born 1197 Brembye (Bramber?), Sussex, England
died 18 July 1232 Brembye (Bramber?), Sussex, England

children:
*William de Braose
born 1230
died 1291

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com