Edmund of Langley Plantagenet
Edmund of Langley was born on June 5th, 1341 in King's Langley, Hertfordshire, England.  He died at the age of 61 on August 1st, 1402 in King's Langley, Hertfordshire, England.  He was buried in Church of the Mendicant Friars, Hertfordshire, England.

 Isabella de Castilla
Isabella was born in 1355 in Morales, Castile.  She died at the age of 38 on November 23rd, 1393.  She was buried in Church of the Dominican Friars, Hertfordshire, England.

 Edward Plantagenet
Edward was born in 1373.  He died at the age of 42 in 1415 in Agincourt; killed.

 Constance Plantagenet
Constance was born about 1374 in Conisborough Castle, Yorkshire, England.¹   She died on November 28th, 1416 in Reading Abbey, Berkshire, England.¹ 

 Richard Plantagenet
Richard was born about September 1375 in Conisburgh Castle, Yorkshire, England.  He died on August 5th, 1415 in beheaded on Southampton Green, Hampshire, England.