A propos jeanbaptisteonlinux

I’m a PHD student at the University of La Rochelle. Among others I organise guided tour at Bordeaux regarding the fortifications/bases of the Second World War. Besides, I also enjoy to ride a cargo-bike and as you can understand I’m using a Linux OS. A Bordeaux et sur le littoral charentais j'organise des visites guidées de certaines fortifications avec mes amis de l'association Mers et Océans.

« Frankton 75: Following in the footsteps of our Grandfather »


En ce moment, un groupe de britanniques remonte la Garonne pour rejoindre l’ancien port de Bordeaux. J’avais suivi le début de leur aventure lorsqu’un site web, un blog et une page facebook avaient été mis en ligne; mais « le grand réseau social » m’a rappelé ce week-end que l’opération Frankton 75  a commencé il y a déjà deux jours. Aussi, si vous remarquez 5 kayaks étranges sur le fleuve ne soyez pas surpris.

Le monument à la mémoire des équipages de l’Opération Frankton installé à Royan (photo prise en juillet 2016).

The Frankton 75 operation has already started. A crew of British guys is currently “[…] recreating the 80 mile canoe down the Gironde estuary into Bordeaux” (facebook page Frankton 75). They have already spent two days paddling onto the river and they are supposed to arrive in Bordeaux in a few days.

I want to tell the crew that I’m sorry to not currently be in Bordeaux. If I could, I would have welcome and proposed them a special free tour of the Bordeaux tidal basins’ where the Italian and German submarines were based during the Second World War.

How to learn more about this expedition:

Facebook page: https://www.facebook.com/frankton75footsteps/

Website: https://www.frankton75th.co.uk/

Blog: https://www.frankton75th.co.uk/blog

Keep paddling guys you will make it soon!


Kriegsmarine installations’ in the Angers metropolis


Almost three years ago, after having moved from Bordeaux to the Poitou-Charentes (old) region – now it is part of the Aquitaine region – here I am now in Angers (Pays de la Loire region). In these two years and half I assume that I haven’t published a lot on this blog, even if I came back to Bordeaux several times. Nonetheless, I am sure that there are some posts that you haven’t read yet.

Barely installed in Angers city I participated in a FdU West guided visit. This site is located in Saint-Barthélémy d’Anjou. Then I came back to this place to meet the Fortress Saint-Nazaire young association’s which was there to meet the Memorial Association of the Pignerolle bunkers and me ;).

Manoir de Pignerolle 2The Domaine de Pignerolle

This estate and its magnificent residence was the place where the Angers metropolis Museum of the Communication‘s was installed from 1992 to the end of the 2015 year’s. If you are driving to the Domaine de Pignerolle, also called Château de Pignerolle or Parc de Pignerolle, you may see on the road-signs some black adhesive bands hiding the name of this Museum. Nonetheless, as it was a few years ago for the Base sous-marine of Bordeaux, the Pignerolle estate is not (yet) well indicated to the tourists passing by Angers. As far as I’m concerned it is the administrator of the U-Boote.fr website who reminded me the existence of this “bunkers’ park”.

Manoir de Pignerolle 1Description

The estate of Pignerolle is famous for its wooded area, its park, its jardins à la française, the residence – named “Castle” – and its stables converted into a temporary exhibition space.

However, the stroller can also discover ten bunkers built in a particular style. In fact, it should be précised that one can’t be seen as it is recovered by earth. Also, there is an eleventh one located at around 4 kilometres from the estate.

Bunker de communication 9Different signs and plaques make some references to the contemporary period. Thus, there is one mentioning the 125th Infantry (French) regiment that was created in Saint-Barthélémy d’Anjou right at the starting of the Second World War.

Plaque de 125RI de St-Barthélémy d'AnjouOne other written both in French and Polish reminds the presence of the Polish government in exile that came to gather and stayed in the Angers metropolis from the 22 of October 1939 to the 14th of June 1940.

Plaque mémorielle 2Historical notice boards made in a plastic are installed on the well-kept bunkers managed by the Memorial Association of Pignerolle.
Panneau historique 1I won’t describe here all the bunkers and even the History of this site, as I invite you to do the guided-visit proposed and organized by the association mentioned before. Nonetheless, we may wonder why the Kriegsmarine installed the FdU West at around 146km far from the sea?

BdU, FdU, Was its das?

The Befehlshaber der Unterseeboote (BdU) was the commander responsible of the German navy submarine forces during the Second World War. The Admiral Dönitz was the commander from October 1939 to January 1943. Then he became the Großadmiral et Oberbefehlshaber der Kriegsmarine – supreme commander of the Kriegmarine – when he replaced Erich Raeder.

Under the Dönitz authority many Führer der Unterseeboote (FdU) headquarters are organized, so as the FdU West. Therefore, due to the Allied air raid intensity on the French occupied ports and also the 1942 Royal Marine raids’ like the Chariot Operation, the BdU decided to install the FdU West headquarters at Pignerolle. Hans Rudolf Rösing, who was the liaison officer between the BdU and the Italian base of Bordeaux, took the commandment of this FdU in July 1942. Located in Paris before its moving to Pignerolle, the FdU West was responsible on all the U-boats based in France, except those based on the Mediterranean French coast.

The FdU West headquarters at Pignerolle

Even if the estate of Pignerolle was far from the coast and the Allied air force areas, the FdU West was sheltered by the edifications of numerous bunkers. Even in the “castle” a bunker was installed and connected by a subterranean corridor to the “admiral bunker”. All the bunkers were principally serving as passive buildings. There were used to protect a communication network between the different U-boats flotillas’ based on the Occupied France and of course the FdU West. According to the President of the Memorial association, who has obtained from the Mayor of Angers the management of the bunkers, these bunkers are not mentioned in any Atlantic Wall typology books’.

Besides, we have only a few elements regarding the bunker builders’. According to two of the association members’, one enterprise of the Angers metropolis participated in this work. The (social) history of these men has still to be completed.

Finally, a little bit more than a year after its set up in the Saint-Barthélémy estate the FdU West is moved to Bergen in Germany the 9th of August 1944.

The Cold War uncompleted anti-atomic shelter

Despite of the bunkers dilapidated condition’s, as the installations were set on fired by the German when they lived the site plus the local people who stole many belongings of the “castle”, the French army decided to transform the “admiral bunker” into an anti-atomic shelter. The “admiral bunker” was partially converted into this. But, probably after having noticed that a “simple” bunker couldn’t withstand an atomic attack, the transformation stopped.

Nowadays, thanks to the association mentioned some bunkers can be visited and this visit is really interesting to do.

Bunker AmiralLiterature:

Sylvain Bertoldi, « Pignerolle la cité de relogement », Vivre à Angers n°338, novembre 2009, (pagination unknown), (online version).

Jean-Luc Coiffard, Domaine de Pignerolle. Témoin d’une grande histoire, Saint-Barthélémy d’Anjou – Angers, Château-Musée de la Communication et Angers Loire Tourisme (i10 Communication), 2006, p. 98 p. (contain a folder  regarding the old Musée de la Communication).

Eric Jamier et Laurent Berrafato, « Le Château de Pignerolle, base de commandement des Loups-gris », p.33-35, in Uniformes n°281, (unknown date).

Sébastien Rochard, « Le Musée de la communication cessera d’émettre fin 2015 », AngersMag (online version).

G. Tomezzoli, L. Pottier, C. Marque, M. Leterte, « Les installations de la Kriegsmarine au Domaine de Pignerolle », 39/45 Magazine, (number and date unknown).

Michel Truttmann, « Les grands postes de commandements allemands en France », pp. 62-74, Histoire de Guerre, n°60, juillet-août 2005.

Sites :

Association Fortress Saint-Nazaire :


Association Memorial of Pignerolle (see the facebook page if you want to contact the association) :


U-Boote.fr :


See the page « Pignerolle » and its section « Pignerolle Avril 2017 par Jean-Baptiste » to visualise some more pictures.

U-boat.net :


After the battle style picture. The temporary cité d’urgence of Pignerolle around 1947 and now

Visite des installations de la Kriegsmarine à proximité d’Angers


Cette galerie contient 1 photo.

Après avoir quitté l’agglomération bordelaise il y a bientôt 3 ans (le temps passe vite !) pour rejoindre l’Université de La Rochelle et donc l’ancienne région Poitou-Charentes, me voici depuis début avril à Angers. Durant ces deux années picto-charentaises je n’ai … Lire la suite

Emission radiophonique sur l’Opération Frankton


Je repartage juste une information que je viens de voir passer sur une page sociale de la revue Le Chasse Marée. Ce dimanche 19 février 2017 sur France Inter à 21h00 dans « Autant en emporte l’Histoire » la thématique portera sur … Lire la suite

Annonce d’un colloque du SHD de Vincennes : L’histoire des opérations militaires. Sources, objets, méthodes


Cette galerie contient 2 photos.

First of all: I wish you all an Happy New Year! Sooner of later, I will take the time to write and publish a retrospective of this past year and I may add a few words about 2015 too. It’s … Lire la suite

(Hommage) Une journée d’étude à la mémoire du Professeur J-C Vimont


Cette galerie contient 1 photo.

Je dédiais ma note publiée le 1er novembre 2015 à mon ancien Professeur Jean-Claude Vimont. Un an après je partage ici l’annonce d’un colloque à la mémoire de monsieur Vimont. Etant loin de la grande Normandie je ne pourrai y … Lire la suite