- Offe Jensen Dyre
 - William de Ferrers
 Birth - about 1240 - Of, Groby, Leicestershire, England - Leugia de Ceva
 - Fernando Prince Of Castile & Leon
 Birth - about 1240 - Of, Burgos, Burgos, Spain - John Fitzjohn
 Birth - about 1240 - Of, Shere, Surrey, England - Isabel Mrs de Toeni
 - Hugh Xii de Lusignan
 Birth - about 1240 - , Angouleme, Chrnt, France - Thomas Le Bigod
 - Alexander Stewart
 Birth - about 1240 - Of, Crawford, Lanarkshire, Scotland - Margaret Venables
 Birth - about 1240 - Of, Kinderton, Cheshire, England - Ralf Of Aldithley
 Death - before 1240 - (Sp Vp) - Clemence de Banastre
 Birth - about 1240 - Mollington, BANASTRE, Cheshire, England - Andrew de Trevelyan
 Birth - about 1240 - Of, Yarnscombe, Devonshire, England - John De Trafford
 Birth - about 1240 - Trafford, Lancashire, England - William "Le Hardi" Douglas
 Birth - about 1240 - Of, Douglas - Robert Fitzroger Clavering
 Birth - about 1240 - , CLAVERING, Essex, England - Robert Neville
 Birth - about 1240 - , Raby, Durham, England - Jens de Capellegord
 - Niels Nielsen Saltensee
 - Esge Olufsen Bild
 - Peder Assersen Hvide
 - Dominis Corvinus von Ritzerow
 - Rabbi Avraham Ashkenazi Treves
 Birth - 1240 - Troyes, France - Erik Knudsen Gyldenstierne
 Birth - about 1240 - Aagaard, Thisted, Denmark - Gottschalk II. von Rantzau
 Birth - about 1240 - Denmark - Gottschalk I. von Rantzau
 - Joan Multon
 Birth - about 1240 - <, Shipbrook, Cheshire, Eng> - Mrs. Margaret De Trafford
 Birth - about 1240 - Of Trafford, Lancashire, England - Simon Vi De Montfort
 Birth - 1240 - Near, Brindisi, Apulia, Italy - Agnes (Anna), Princess France
 - Marjorie (Bridget) Comyn
 Birth - about 1240 - Of, Whitewich Castle, Leicestershire, England - Nicole D' Aubigny (Albini)
 Death - 1240 - Dudley Castle, Strafford, Eng - Hugh de Venables
 Birth - about 1240 - , Kinderton, Cheshire, Eng - Cecilia de Baliol
 Birth - about 1240 - Bernard Castle, Gainford, Durham, England - Giles Ii de Berkeley
 Birth - 1240 - Of, Coberley, Gloucestershire, England - Hugh Wake
 Birth - about 1240 - , Of Deeping, Lincolnshire, England - Walter de Heneage
 Birth - about 1240 - Of, , Lincolnshire, England - William Devereux
 Birth - about 1240 - Of, Lyonshall, Hereford, England - Alice Grandison
 Birth - about 1240 - Of Herefordshire, England - Peter de Montford
 Birth - about 1240 - Of, Beaudesert Castl, Warwickshire, England - Randolph Darce
 Birth - about 1240 - <, Shipbrook, Cheshire, Eng> - Helen (unknown)
 - Nicholas Plantagenet
 - William de Northorpe
 Birth - about 1240 - Mirfield, County Yorkshire, England - Hugh Fitzhugh
 Birth - about 1240 - Of Ravensworth, Yorkshire, England - John Dunbar
 - Isabella (Isabel) D' Albini (Aubigny)
 - Erzsebet Princess Of Kumans
 Birth - 1240 - Of, , Cumania - Istvan V, King Hungary
 Birth - about 1240 - Of, Buda, Pest, HUNGARY - Joane Quincy
 Birth - about 1240 - Of, Blisworth, Northamptonshire, England - Agnes Bacon
 Birth - about 1240 - Of, Letheringsett, Norfolk, England - Alan de Peninton
 - Alice Oxton
 Birth - about 1240 - Of Kynderton, Cheshire, England - Isabel Marshall
 - John Fitzalan
 - Llewelyn Ap Iorwerth
 Death - 11 April 1240 - Aberconwy, Arllechwedd Isaf, Caernarvonshire, Wales - Isabel de Clare
 Birth - May 1240 - Of, Tunbridge, Kent, England - William Plantagenet (War
 - John de Lacy
 - Margaret Princess Of England
 - Branca Princess Of Portugal
 - Blanche Princess Of France

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