- Richard De Montfort
Death - about 1265 - , , , France - Thomas Molyneux
Birth - about 1265 - Of, , Lancashire, England - James Douglas
Birth - about 1265 - Of, Douglas - Henry Neville
Birth - about 1265 - Raby, Durham, England - Theobald Verdon
- Louis "D'Acre" de Brienne
Birth - about 1265 - , Acre, Jerusalem, Palestine - William Cancefield
Birth - about 1265 - Of, Aldingham, Lancashire, England - Robert Molyneux
Birth - about 1265 - Of, Netherton, Lancashire, England - (unknown) Northorpe
Birth - about 1265 - England - Richard Paves
- Henry Tyeys
Birth - about 1265 - Of, Fritwell, Oxfordshire, England - Lage Offesen Dyre
- Jens Nielsen Hvide Galen
- Niels Vognsen
- Jens Nielsen Juul
Birth - about 1265 - Ribe, Denmark - (unknown) HaCohen
- Moses HaLevi
Birth - about 1265 - Narbonne, Franken - Yochanan HaGadol Treves Ashkenazi
Birth - 1265 - Troyes, France - Robert Vipont
- Humphrey de Bohun
- John Cancefield
Birth - 1266 - Of, Aldingham, Lancashire, England - Gilbert de Haya
- Henry Bacon
Birth - about 1266 - Of, Letheringsett, Norfolk, England - Manfredo, King Of Sicily
- Niels Tokensen Saltensee Peck
- Lawrence de St. Martin
- John Cantilupe
- Robert De Trafford
Birth - about 1266 - Trafford, Lancashire, England - James Banastre
Birth - about 1266 - Newton, Makersfield, Lancashire, England - Hugh Bigod
- Thomas Randolph
Birth - before 1266 - Of Stranith Or N, Scotland - Thomas de (Gray) Grey
Birth - about 1266 - Of, Heton, NORTHUMBERLAND, England - Alfonso de Vere
- Peter Blount
Birth - about 1266 - Of, Hanslope, Buckingham, England - John Clavering
Birth - about 1266 - Of, CLAVERING, Essex, England - Henry Fitzhugh
Birth - about 1266 - Of Ravensworth, Yorkshire, England - John Prince Of England
Birth - 10 July 1266 - Windsor Castle, Windsor, Berkshire, England - Richard Sutton
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