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Routes
Road cycling routes
France
Ile-de-France
Pontoise
Saint-Clair-Sur-Epte

Gisors Castle – Château de Boury loop from Guerny

Routes
Road cycling routes
France
Ile-de-France
Pontoise
Saint-Clair-Sur-Epte

Gisors Castle – Château de Boury loop from Guerny

Easy

5

riders

Gisors Castle – Château de Boury loop from Guerny

01:37

37.0km

280m

Road cycling

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: May 30, 2026

Tips

The surface along some of this route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 21.1 km for 155 m

After 21.4 km for 155 m

Waypoints

A

Start point

Bus stop

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1

388 m

Birthplace of Normandy

Highlight • Historical Site

2

2.72 km

Epte Valley

Highlight • Other

Current natural border between Île-de-France and Normandy, Epte is also a historical border. Indeed, in the Middle Ages, it was the boundary between the Kingdom of France and the Duchy of Normandy. This is why it had a large number of fortifications.

Here, precisely in Saint-Clair-sur-Epte, the treaty was signed in 911 between Charles III the Simple and Rollo, Viking leader, aimed at establishing the Normans in Neustria in order to protect the kingdom of Charles III from their incursions by sea This treaty gave birth to the Duchy of Normandy.

Translated by Google •

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3

21.3 km

Saint-Gervais–Saint-Protais Church

Highlight • Religious Site

The Priory Saint-Ouen was founded around 1066 by Hugues de Chaumont, who gave the priory to the monastery Marmoutier. Over time, the Franciscans (ordo fratrum minorum recollectorum), the Trinitarian Order and the Ursulines had branches in Gisors. [

Around 1095, the Duke of Normandy and King of England William II (Guillaume II le Roux) built an octagonal donjon to defend the borders. The castle Gisors was one of the numerous border patrols such as Dangu, Château -sur-Epte, Ecos, Baudemont and Gasny along the Norman Epte shore. On the French side lay the castles of Boury-en-Vexin, Saint-Clair-sur-Epte and La-Roche-Guyon. Gisors was the most important border fort in the north of the Norman Vexin. [6]

Due to its location, the town played several roles in the 12th Century in the signing of peace treaties between the King of France and the King of England, who was also the Duke of Normandy.

Peace of Gisors 1113
Peace of Gisors 1180
Peace of Gisors 1188

Castle ruin Gisors
In a field between Gisors and Courcelles on September 28, 1198 a battle between the English king Richard the Lionheart and the French king Philip II took place. Philip II (1165-1223) did not use the old, octagonal donjon, but had a new, circular donjon built, called the Tour du prisonnier ("prisoner's tower"), because a prisoner was there at the time of the Huguenot wars (1562- 1598) has carved numerous reliefs in the walls of his cell.

Gisors was converted several times into a Comté or a Duché. At the beginning of the 14th century was the heyday of Gisors. Tanneries and weaving mills of the city led to economic growth. Gisors was the seat of one of the seven major Bailliages of Normandy and seat of a Vicomté.

Translated by Google •

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4

21.6 km

Gisors Castle

Highlight • Castle

The Château de Gisors is a castle located in the Eure department. The castle was a key fortress of the Dukes of Normandy in the 11th and 12th centuries. Its purpose was to defend the Anglo-Norman territory of the Vexin from the claims of the King of France.

Translated by Google •

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5

30.1 km

Château de Boury

Highlight • Castle

Boury Castle is a 17th century castle built by the architect of Versailles, Jules Hardouin-Mansart. You can admire the elegant architecture and French gardens, as well as the furnished interiors, chapel and kitchen. The castle offers guided tours and activities for children, as well as a large park and playground. You can also enjoy the neighboring village of Boury-en-Vexin, once occupied by Richard the Lionheart. The Château de Boury is open on Sundays and public holidays from 2:30 p.m. to 6 p.m. during the opening period.

Translated by Google •

Tip by

6

36.4 km

Viking Ship Decoration

Highlight • Structure

Beautiful Drakkar as decoration

Translated by Google •

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B

37.0 km

End point

Bus stop

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Way Types & Surfaces

Way Types

29.8 km

4.90 km

1.46 km

828 m

Surfaces

31.8 km

4.89 km

308 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (140 m)

Lowest point (30 m)

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Weather

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Thursday 9 July

34°C

17°C

0 %

Additional weather tips

Max wind speed: 18.0 km/h

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