Richard , Earl of Cornwall and Poitiers, Prince of England Plantagenet
Richard , Earl of Cornwall and Poitiers, Prince of England was born on January 5th, 1208 in Winchester,Hampshire,England and his baptism took place on May 1st, 1209 in Winchester Castle,Hampshire,England.  He died at the age of 64 on April 2nd, 1272 in Berkhampsted,Hertford,England.  He was buried on April 13th, 1272 in Hailes Abbey,Hailes,Gloucester,England.

 Isabel , Countess of Hertford Marshall
Isabel , Countess of Hertford was born about 1189 in of,Pembrokeshire,Wales and her baptism took place in April 1206 in ,St. David's,Pembrokeshire,Wales.¹   She died in Berkhamstead,Hertfordshire,England.  She was buried in Beaulieu,Southampton,England.^1 1 

 John Plantagenet
John was born on January 31st, 1232 in Great Marlow,Buckinghamshire,England.  He died at 7 months old on September 22nd, 1232 in Great Marlow,Buckinghamshire,England.  He was buried in ,Reading,England.

 Isabel Plantagenet
Isabel was born on September 6th, 1233 in Great Marlow,Buckinghamshire,England.  She died at 1 months old on October 6th, 1233 in Great Marlow,Buckinghamshire,England.  She was buried in ,Reading,England.

 Henry Plantagenet
Henry was born on November 1st, 1235 in Hailes,Gloucestershire,England.  He died at the age of 35 on March 13th, 1271 in St. Silvester,Viterbo,Latium,Italy.  He was buried on May 21st, 1271 in Hailes Abbey,Winchcombe,Gloucester,England.

 Nicholas Plantagenet
Nicholas was born in January 1240 in Berkhamstead,Hertfordshire,England.  He died in January 1240 in Berkhamstead,Hertfordshire,England.

 Richard Plantagenet
Richard was born in of Berkhamstead,Warwick,England.  He died before 1256 in ,,England.  He was buried in ,Westminster,Co. Middlesex,England.