Château Gaillard

Château Gaillard was built in just two years (1196–1198) by Richard the Lionheart to defend the Seine valley and the eastern frontier of Normandy against the French king Philip II. Its concentric design and use of machicolations were revolutionary in Western Europe, reflecting lessons from Crusader castle-building. Philip II captured it in 1204 after a prolonged siege, sealing the French conquest of Normandy.

Why it mattered

• Revolutionary concentric design in Western Europe
• Richard I's personal military masterpiece
• Its fall in 1204 marked the end of the Duchy of Normandy as an English possession

Architecture and the site

• Three concentric baileys on a limestone spur
• Corrugated inner curtain wall to deflect missiles
• Rock-cut ditch isolating the inner ward

Chronology (selected)

• 1196: Richard I begins rapid construction
• 1198: Castle completed
• 1204: Philip II captures the castle after siege

Further reading

• Jean Mesqui, "Château Gaillard: étude de castellologie médiévale" (2002)

Hub essays

• Region context: normandy from grant to duchy and the shared bibliography.
• Castles and fortification: Norman castles — motte to stone.

On the map

Use Open on map to fly to this pin in the Norman expansion era. Layers are teaching overlays — pair them with charters, excavation reports, and the works above.