- Elisabeth Isabelle De Dreux
- Isabel De Cornwall
Birth - about 1239 - Of, Cornwall, Cornwall, England - Robert De Courtenay
- Simon De Dammartin
- Dedammartin Simon
Death - 1239 - Castile, Spain - Pedro II The (Family name unknown)
- Nicole De Albini or D'aubi
- Isabel Beauchamp
Birth - about 1240 - Gloucestershire, England, Eng - Anne Le Despenser
Birth - about 1240 - Of, Loughborough, Leicestershire, England - William De Ferrers [Sir Knight]
Birth - about 1240 - Of, Groby, Leicestershire, England - Agnes Or Anna, France
- Simon VI De Montfort
Birth - 1240 - Near, Brindisi, Apulia, Italy - Nicholas Plantagenet
Death - January 1240 - Berkhampstead, Hertfordshire, England Birth - January 1240 - Berkhampstead, Hertfordshire, England - Jean II Duke Brittany
- Isabel Marshall
- John De Lacey
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