Llywelyn Fawr the Great ap Iowerth of Wales
Llywelyn Fawr the Great ap Iowerth of was born in 1173 in Anglesey, Wales.  He died at the age of 67 on April 11th, 1240 in Aberconway, Carnarvon, Wales.  He was buried in 1240 in Aberconwy Abbey, Aberconvway, Carnarvon, Wales.

 Tanglwy Goch verch Llywarch of Rhos
Tanglwy Goch verch Llywarch of was born about 1168 in Rhos, Denbighshire, Wales.  She died after 1198.

 Marared Drwyndon verch Llywelyn Fawr
Marared Drwyndon verch Llywelyn was born before 1240 in Wales.  She died in 1263.  She was buried in Aconbury Church, Hereford, England.

 Gruffydd ap Llywelyn Fawr
Gruffydd ap Llywelyn was born in Caernarvonshire, Wales.  He died in Tower of London, London, England.

 Gwenllian verch Llywelyn Fawr

 Gwladys Ddu verch Llywelyn Fawr
She died in 1251 in Windsor.