Edmund "of Langley" Plantagenet
Edmund "of Langley" was born on June 5th, 1341.

 Isabel Perez Princesa de Castilla y Leon
Isabel Perez Princesa de was born in 1355 in Morales,Tordesillas,Villadolid,Spain and her baptism took place in (37-1392).¹   She died in Langley,Hertford,England.  She was buried in ChurchThe Dominican Friars,Hertford,England.^2 1 

 Richard Plantagenet
Richard was born in September 1375.