#4 Henry III
 
#3 Edmund Plantaganet
brother of Lionel Plantaganet - Duke of Clarence
brother of John of Gaunt - Duke of Lancaster

  #4 ?Unknown?
 

#2 Henry (Earl of Lancaster) Plantaganet
 
#3 ?Unknown?
   
             #1 Mary Plantaganet
            

   

#2 ?Unknown?