Battle of Sandwich (1217)

E87919

The Battle of Sandwich (1217) was a decisive naval engagement off the coast of Kent in which English forces defeated a French fleet, helping to end French intervention and secure King Henry III’s position in the First Barons’ War.


Statements (43)
Predicate Object
instanceOf battle of the First Barons' War
naval battle
aftermath French abandonment of claim to English throne for Louis
strengthening of royal authority under Henry III
alsoKnownAs Battle of Dover Strait (1217)
associatedWith Prince Louis (later Louis VIII of France)
reign of Henry III of England
belligerent French forces
Kingdom of England
forces of Prince Louis of France
supporters of Henry III of England
combatantRole English fleet commander Hubert de Burgh
French fleet commander Eustace the Monk
commander Eustace the Monk
Hubert de Burgh
Philip d'Aubigny
Robert of Courtenay
conflict First Barons' War
country Kingdom of England
date 24 August 1217
effect contributed to the Treaty of Lambeth (1217)
end of major French naval threat in First Barons' War
forced Prince Louis of France to negotiate peace
helped end French intervention in England
secured the position of Henry III of England
geographicalContext coast of Kent
historicalPeriod High Middle Ages
location English Channel
off Sandwich, Kent
navalTheatre English Channel operations in First Barons' War
notableEvent death of Eustace the Monk
objective to intercept French reinforcements and supplies
outcome decisive defeat of French fleet
partOf First Barons' War
precededBy Battle of Lincoln (1217)
relatedTo French invasion of England (1216–1217)
Treaty of Lambeth (Treaty of Kingston)
result English victory
shipTypeUsed medieval cogs
significance decisive naval engagement securing royalist control of England
tacticalFeature English attack from windward position
use of grappling and boarding by English ships
year 1217

Referenced by (7)

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