Dec 22 Luca della Robbia, Italy, sculptor (Madonna of Rose Garden) was born in the year 1400.
Jan 05 John Montacute, 3rd Earl of Salisbury, English politician (executed) (b. ca. 1350) died in the year 1400.
Jan 07 On this day in history death of thomas Holland, 1st Duke of Surrey, English politician (b. 1374)
Jan 16 John Holland, 1st Duke of Exeter, English politician (executed) (b. 1352) died on this day in history.
Feb 14 In the year 1400 death of richard II, king of England (1377-99), murdered at age 33 at Pontefract Castle
Mar 24 In the year 1400 florens Radewijns, Dutch priest/leader Modern Devotion, dies
Oct 25 In the year 1400 geofrey Chaucer, author (Canterbury Tales), dies in London