- Jitzhak HaCohen Katz
- Baron John Tiptoft
- Earl Richard De Neville
Birth - about 1400 - Of, Raby, Durham, England - Thomas Finck
- Akiva HaCohen Katz
Death - 1400 - Thessaloniki - Heintz Theg
- Jonge Leve
Birth - about 1400 - Nordstarnd - Palle Nielsen Kirt
- Niels Bang
- Jesse Bundesen
- Niels Lauridsen Kotte til Hallegaard
Birth - about 1400 - Hollufgård, Fraugde Parish, Åsum Herred - Thomas Blount
- Robert Bullock
- Philip Courtenay
Birth - about 1400 - Of, Powderham, Devonshire, England - Thomas Harrington
Birth - 1400 - Of, Hornby Castle, Lancashire, England - Edmund Pilkington
Birth - about 1400 - Blackrod, Lancashire, Eng - Ralph Booth
Birth - about 1400 - Of, Barton, Lancaster, England - Sir Giles Daubeny
- Thomas Wooton
Birth - about 1400 - Of Chester, Cheshire, England - John Pawlet
Birth - about 1400 - Of Monney Castle, Somersetshire, Engl. - John Arundell
- Baldewyn Brugge
Birth - about 1400 - Of, Haresfield, Gloucestershire, England - David Murray
Birth - about 1400 - Of, Tullibardine, Perthshire, Scotland - Reginald West
Birth - about 1400 - Of Devonshire, England - John Paulet
- Warin L' (Archdeacon) Arcedekne
- Baron John Sutton of Dudley
- William Vaux
- Richard Harrington
Birth - about 1401 - Blackrod, Lancashire, Eng - Peder Andersen Due
- William Ap Thomas Herbert
Birth - about 1401 - Of Ragland Castle, Monmouthshire, England - William Beeston
- John Chidiocke
Birth - 1401 - Of, Chidlock, Dorsetshire, England - Hugh (De Holes) Hulse
Birth - about 1401 - Of, Raby, Cheshire, England - Earl Thomas De Beauchamp
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