Black Monday (1360)

Siege of Chartres (1360)
Part of the Hundred Years' War

The History of that Most Victorious Monarch Edward III by Joshua Barnes
Date13–14 April 1360
(1 day)
Location
Outskirts of Chartres, France
Result English defeat
Belligerents
England France
Commanders and leaders
King Edward III
Edward, the Black Prince
Walter Manny
Duke of Lancaster
Earl of Warwick
Guy de Beauchamp 
Androuin de La Roche
Strength

10,000

  • 4,000 men-at-arms
  • 700 continental mercenaries
  • 5,000 mounted archers
Low
Casualties and losses
1,000 dead None/Unknown

Black Monday took place on Easter Monday (1360) during the Hundred Years' War (1337–1360), when a freak hail storm struck and killed an estimated 1,000 English soldiers. The storm was so devastating that it caused more English casualties than any of the previous battles of the war.