| | Les Andelys : Château-Gaillard |
 | | Having been established at the convergence of the Seine and a small tributary, the Gambon, Château-Gaillard served the function of barring the way from Rouen and overseeing the Vexin region, which was disputed land between the dukes of Normandy and the kings of France and injudiciously ceded by Richard to Philippe-Auguste in 1195. |
 | | The castle was in fact merely one piece in a vast array of fortifications sealing off the Seine valley and including advanced forts, the ramparts of the villages of Vieil and Petit Andeli, a fortified bridge and the Royal manor on an island in the river. |
 | | Built on an outcrop of the right bank of the river, and isolated on three sides, the building work presents some revolutionary building techniques which made it a masterpiece of military architecture. |
| www.mondes-normands.caen.fr /angleterre/Patrimoine_architectural/Normandie/Vexin/lesAndelys/0802lesAndelys (419 words) |