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