Joan (?) Peerage person ID=407195 Parents John, King of England Agatha de Ferrers Children Siblings Joan, Lady of Wales Henry III of England John FitzJohn Richard of Wallingford Oliver fitz Regis Richard of Cornwall Isabella of England Henry (?) Isabella la Blanche Richard FitzRoy Eleanor of Leicester Joan of England Matilda of Barking Odo FitzRoy Osbert Gifford Ivo (?) Geoffrey FitzRoy