Prince Richard of England -Earl of Cornwall
Prince was born in Winchester Castle, Hampshire, England.¹   He died  due to Apoplectic siezure on April 2nd, 1272 in Berkhamsetad Castle, Hertfordshire, England.  He was buried on April 13th, 1272 in Hailes Abbey,Hailes,Gloucestershire,England.¹ 

 Joan (Jane) de Valletort
Joan (Jane) was born about 1213 in Winchester, Hampshire, England.¹ 

 Joan de Cornwall
Joan was born about 1264 in Modbury, Devonshire, England.¹