Children of King John Plantagenet of England .. by Mother       Isabelle d'Angouleme (Isabella de Taillefer), wife --Henry Plantagenet, King of England --Princess Isabel Plantagenet, Princess of Germany --Henry III Plantagenet, King of England --Richard Plantagenet, 1st Earl of Cornwall --Isabella Plantagenet, Empress, Holy Roman Empire --Eleanor of Leicester, Countess of Pembroke & Leicester --Joan Plantagenet, Queen Consort of Scotland Adella Plantagenet, Concubine #1 --Richard FitzRoy, Lord of Chilham Clementia d'Arcy, Concubine #2 --John FitzHenry Plantagenet --Joan FitzHenry Plantagenet, Lady Snowden, Princess of Wales Agatha de Ferrers. mistress --Joan, princess of England Hawise FitzWarin, mistress --Oliver FitzRoy of England Concubines #5 - #12, (mothers unknown) --Geoffrey FitzRoy --Osbert Gifford --John FitzRoy, Knight & Clerk at Lincolnshire --Henry FitzRoy --Eudes FitzRoy --Bartholomew FitzRoy --Maud FitzRoy, Abbess of Barking --Isabel FitzRoy --Philip FitzRoy