Prince Richard Plantagenet de Cornwall
Richard Plantagenet was born in Winchester castle.  He died on April 2nd, 1272 in Berkhamstead castle.  He was buried in Hailes abbey, Glos..

 Joan de Valletort
Joan is no longer alive.

 Lawrence Plantagenet de Cornwall
Lawrence Plantagenet was born in 1241.

 Isabella Plantagenet de Cornwall
Isabella Plantagenet was born in 1258.

 Philip Plantagenet de Cornwall
Philip Plantagenet was born in 1262.

 Joan I Plantagenet de Cornwall
Joan I Plantagenet was born about 1266 in Tawton,Modbury,Devonshire.

 Richard Plantagenet de Cornwall