Richard Plantagenet King Of The Romans
Richard was born in Windsor Castle, Hampshire, England.  He died on April 2nd, 1272 in Newark Castle, Hertfordshire, England.

 Joan Basset
Joan was born about 1204 in Headington, Oxfordshire, England.

 Sir/De Cornwall Walter Plantagenet De Cornwall
Walter was born about 1247.  He died in 1313.

 Sir/Earl Of Cornwall Richard Plantagenet Earl Of Cornwall
Richard was born about 1252 in Berkhamstead, Hertfordshire, England.  He died in 1296 in Berwick-upon-Tweed, Northumberland, England.