​

Blain: The Château de la Groulais on the Nantes–Brest Canal

Pays de la Loire, France

easy
history

Badge Unlock

Groulais Printer

Complete this challenge to add this badge to your collection.

200

XP

+100 France

= 300 total

1 day

Blain: The Château de la Groulais on the Nantes–Brest Canal

easy
history

200 + 100 XP

The Château de la Groulais at Blain was begun about 1104 for Alain IV Fergent, duke of Brittany, as one of the duchy's frontier fortresses alongside Vitré, Fougères, Châteaubriant, Ancenis and Clisson. It was razed in 1260, rebuilt, grown into a formidable castle under Olivier V de Clisson, held by the Rohan from 1407 to 1802, reworked in Renaissance style in the 16th century when Blain was a centre of the Reformation in Brittany, taken and damaged by the Catholic League in 1591, and dismantled on Richelieu's order in 1628. It had up to twelve towers and nine of them still stand. The moats were fed by the Isac before the Nantes–Brest canal took over its course in the 19th century, and the association Amagraph runs a museum of old printing in the buildings.

Required Activities

1

of 4

Cross the drawbridge and count how many of the castle's original twelve towers are still standing — nine, in varying states — then find the tour du Connétable of 1386 on the north-east, 45 m by 15 m under a conical slate roof with its square stair turret standing out from the wall, and the three 16th-century towers of 22 m diameter on the enceinte, one of them horseshoe-shaped

2

of 4

Set a line of type at Amagraph's museum of old printing in the castle buildings, then look in on the Centre de la fresque next door, where fresco painting is worked a fresco, and see which artists are hanging in the castle rooms this summer

3

of 4

Walk or cycle the towpath from the port on the canal north-north-east of the castle, and work out where the Isac used to run before the 19th-century canal took its course — the same water that once filled these moats — then carry on south into the forêt de la Groulaie

4

of 4

On the Logis du Roy, find the work Marie Bonaparte paid for while she owned Blain from 1918 to 1950 — tall pinnacled dormers, gargoyles, and chimneys patterned in brick and slate — then find the cellier de la Reine, the cellars that are all that is left of the Logis de la Reine after Richelieu, and the crypt, all that survives of the 16th-century chapel where the mathematician François Viète stayed with the Rohan

  • Cross the drawbridge and count how many of the castle's original twelve towers are still standing — nine, in varying states — then find the tour du Connétable of 1386 on the north-east, 45 m by 15 m under a conical slate roof with its square stair turret standing out from the wall, and the three 16th-century towers of 22 m diameter on the enceinte, one of them horseshoe-shaped

  • Set a line of type at Amagraph's museum of old printing in the castle buildings, then look in on the Centre de la fresque next door, where fresco painting is worked a fresco, and see which artists are hanging in the castle rooms this summer

  • Walk or cycle the towpath from the port on the canal north-north-east of the castle, and work out where the Isac used to run before the 19th-century canal took its course — the same water that once filled these moats — then carry on south into the forêt de la Groulaie

  • On the Logis du Roy, find the work Marie Bonaparte paid for while she owned Blain from 1918 to 1950 — tall pinnacled dormers, gargoyles, and chimneys patterned in brick and slate — then find the cellier de la Reine, the cellars that are all that is left of the Logis de la Reine after Richelieu, and the crypt, all that survives of the 16th-century chapel where the mathematician François Viète stayed with the Rohan

Before you go

The château opens from May to September only; out of season the canal towpath, the outer walls and the towers seen from outside are still worth the stop. The site is part public and part private — the lawns inside the great enceinte belong to the commune and are used for medieval re-enactments, while the Logis du Roy and the mill tower are in private hands and open only for events. Amagraph's printing museum keeps its own hours within the castle season, so ask at the gate.

Finding nearby campsites...

About Pays de la Loire

Loading region info…

Explore more about Pays de la Loire:

WikipediaWikivoyageFlickrYoutubeINaturalistOpenStreetMap

Challenge Location

XP Breakdown

Challenge XP

200 XP

France country bonus

+100 XP


Potential total

300 XP

Country bonus earned on completion of your first challenge in France.

More challenges nearby

within 100km

cultural
250 XP
+100 France

Nantes: The Great Elephant, the Dukes' Castle and the Green Line

France · Pays de la Loire

cultural

easy

2d

32 km away

active
300 XP
+100 France

The Île-aux-Pies: Granite Cliffs, Canoes and the Nantes–Brest Canal

France · Brittany

active

medium

2d

38 km away

cultural
250 XP
+100 France

Saint-Nazaire: Ocean Liners, a Submarine and the Serpent of the Loire

France · Pays de la Loire

cultural

easy

2d

39 km away

wildlife
225 XP
+100 France

Lac de Grand-Lieu: The Lake That Doubles in Winter and the Carolingian Abbey

France · Pays de la Loire

wildlife

easy

1d

42 km away

cultural
275 XP
+100 France

Guérande and the Brière: Salt Pans and Thatched Villages

France · Pays de la Loire

cultural

easy

2d

52 km away

relaxation
200 XP
+100 France

La Baule: Eight Kilometres of Sand and the Villas of the Bay

France · Pays de la Loire

relaxation

easy

1d

53 km away

About AVANDRA

Your ultimate trip planner for adventurous getaways.

Quick Links

Trips

Connect With Us

© 2026 AVANDRA. All rights reserved.