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jGDNÄ: “We are backed by a highly motivated team”

“WE ARE BACKED BY A HIGHLY MOTIVATED TEAM”

Bei der ersten Mitgliederversammlung der jGDNÄ in Bremen wurden erstmals zwei Sprecher gewählt: Lennard Kleemann, der Molekulare Biotechnologie an der Universität Heidelberg und zusätzlich Humanmedizin studiert und Nina Rack – sie studiert Humanmedizin an der Universität Greifswald. Hier sprechen sie über das, was die jGDNÄ in zwei Jahren erreicht hat und über große Pläne für die Zukunft.

Two years ago, at the GDNÄ meeting in Potsdam, the Young GDNÄ was founded. Where does it stand today?

Lennard: In Potsdam, the Young GDNÄ was merely announced; we first had to think about what we wanted to make of it. Since then, we’ve achieved a great deal: We have a social media team; we organised a jGDNÄ congress in Heidelberg in 2025; we’ve set up a buddy programme where student mentors support younger members; we’ve agreed on a set of rules of procedure; and we’ve pushed ahead with networking with other organisations for young scientists. Incidentally, we no longer refer to it as the ‘Young GDNÄ’, but as the ‘Young Network of the GDNÄ’.

Nina: We also helped organise the preparatory workshops and evening entertainment as part of the school pupils’ programme, initiated the talk by Cologne-based forensic biologist Mark Benecke, set up the student advisory service for school pupils, and launched the NextMed Science Café.

Lennard: Not to mention the first general meeting of the jGDNÄ, at which not only were the two of us elected as spokespersons for two years, but a coordination team comprising six subject representatives was also established, modelled on the GDNÄ.

Wow. And you still find time to study on top of all that?

Nina: Absolutely. Before the conferences, it’s naturally a lot of work. But in between, the tasks are spread out quite well, especially because we’re backed by a highly motivated team of around thirty very active jGDNÄ members.

How many of you are there in total?

Lennard: We have 160 members. Now, following the Bremen conference, another hundred participants from the school programme will be joining us. Anyone who joins the GDNÄ as a young person up to the age of 32 automatically becomes a member of ours.

What’s your relationship with the GDNÄ like?

Nina: Very good. The Executive Board supports us in every way, and our projects are also funded by the GDNÄ. We attend the Executive Board meetings and our views are taken seriously. We’re also very pleased with our collaboration with the secretariat: our emails are answered quickly, even at the weekend, and Ms Landeck and Ms Diete are on hand to help with any questions we have.

What are your plans for next?

Lennard: The next jGDNÄ Congress will take place from 24 to 27 June 2027 in Frankfurt am Main, and intensive preparations are currently under way. The theme is ‘Knowledge Connects Worlds’. The focus will be on the natural and technical sciences and medicine. As we did in Heidelberg in 2025, we’ll be visiting research institutions and production facilities, partly with a view to potential future workplaces for us. Nina, a native of Frankfurt, will be in charge of coordination.

Nina: Fortunately, I’ll have a brilliant team to help. On the evening of 25 June, there will also be a regional meeting in Frankfurt – see the QR code – to which not only GDNÄ members but anyone interested is invited. We’ll hear a talk by the journalist and qualified neurobiologist Dr Regina Oehler entitled ‘The Illusion of the Simple Answer: Theses on Science Journalism Using the Brain and Consciousness as Examples’ – a great starting point for our discussion afterwards.

Professorin Eva-Maria Neher © Universität Göttingen/Peter Heller

© GDNÄ

Lennard Kleemann, who is studying molecular biotechnology at the University of Heidelberg as well as medicine, and Nina Rack: She is studying medicine at the University of Greifswald.

Professorin Eva-Maria Neher © Universität Göttingen/Peter Heller


QR code: Initial information and pre-registration for the jGDNÄ Congress in Frankfurt am Main in June 2027.

Paul Mühlenhoff: The Student Program and jGDNÄ are becoming increasingly interconnected

“The Student Program and jGDNÄ are becoming increasingly interconnected”

Paul Mühlenhoff has headed the GDNÄ’s Student Program since 2012. His full-time position is as a senior teacher of biology and German at a high school in Bielefeld. This year, as in previous years, his school granted him a few days off to prepare for and carry out the Student Program.

Mr. Mühlenhoff, how is the 2026 Student Program going?
Very well so far. One hundred students are participatin – most of them are from the Bremen, Lower Saxony, and North Rhine-Westphalia regions. This year, for the first time, the jGDNÄ organized the preparatory workshops. There were five meetings during which the students prepared for the presentations and subsequent panel discussions. This led to excellent results, as we saw this morning in the “Computer Science / Mathematics” session: The students were able to challenge the scientists with well-reasoned questions and engage with them. The young people have been very visible at the conference from the very beginning. Last night, the “Science in 5 Minutes” science slam was once again very well attended; today through Sunday, the young participants are engaging in panel discussions with researchers. What pleases me particularly is the strong connection between the student program and the jGDNÄ.

Professorin Eva-Maria Neher © Universität Göttingen/Peter Heller

© GDNÄ

Paul Mühlenhoff has headed the GDNÄ’s Student Program since 2012.

The student program has been part of the GDNÄ for a long time. The jGDNÄ, for students and early-career researchers, was founded just two years ago. How do the two groups fit together?
The transition between them is often seamless. Most members of the jGDNÄ have previously participated in one of the student programs. We organizers try to ensure a smooth transition from the younger group to the older one. The goal is for young people to remain with the GDNÄ in the long term and to build lasting networks with one another. The jGDNÄ is taking on more and more responsibility within the GDNÄ, including for the student program. The fact that forensic biologist Mark Benecke gave a presentation at a preparatory workshop is thanks to the jGDNÄ—the students were thrilled. 

So, is everything going well?
We definitely want to keep the student program going. But even very good things can get even better. Next time, we want to spread out the preparation over fewer dates and further optimize our collaboration with mentors. 

The next GDNÄ meeting will take place in Essen in 2028. What’s planned for the student program?
We’ll invite schools in Essen and within a 200-kilometer radius to participate. We also plan to once again invite talented students from “Jugend forscht” and other foundations. The jGDNÄ will once again play a key role in this. If at all possible, we want to offer student labs and field trips to research institutes again in 2028.

Professorin Eva-Maria Neher © Universität Göttingen/Peter Heller

© GDNÄ

Paul Mühlenhoff: His full-time position is as a senior teacher of biology and German at a high school in Bielefeld.

Martin Lohse awarded the Alexander von Humboldt Medal

Martin Lohse awarded the Alexander von Humboldt Medal

At the 134th Annual Meeting of the Society of German Naturalists and Physicians (GDNÄ) in Bremen, the Alexander von Humboldt Medal was awarded to Professor Martin Lohse. He received the award in recognition of his outstanding commitment as President and a member of the Executive Board of the GDNÄ.

During the opening session of the 134th Assembly of the Society of German Naturalists and Physicians (GDNÄ) on 18 September 2026 at the Congress Centrum Bremen, Professor Martin Lohse was honoured with the Alexander von Humboldt Medal. As GDNÄ President from 2019 to 2022, Martin Lohse led the natural history society through the difficult years of the pandemic and was responsible for the 200th-anniversary celebrations in Leipzig. In his laudatory speech, GDNÄ Vice-President Heribert Hofer highlighted the award winner’s outstanding achievements: “Martin Lohse led the GDNÄ with great passion for four years and played a key role in the magnificent 200th-anniversary celebrations in Leipzig,” said Heribert Hofer.

Eröffnung der Büros Postplatz 1 © Paul Glaser

© MIKA-fotografie | Berlin

Martin Lohse with the certificate for the GDNÄ’s Alexander von Humboldt Prize. To his left: GDNÄ President Anke Kaysser-Pyzalla; to his right, GDNÄ Vice-President Professor Heribert Hofer (with the medal).

Furthermore, the award winner had served the GDNÄ for many years as Vice-President and a member of the Executive Board. Martin Lohse is the editor of the GDNÄ commemorative publication in book form, *Wenn der Funke überspringt* (*When the Spark Ignites*), which Hofer recommended to the audience as a scientific overview accessible to a general audience. The laudator paid tribute to the outstanding academic career of the pharmacologist Martin Lohse and his services as Vice-President of the Leopoldina, for which he and a team of scientists drafted the politically decisive position paper ‘Clean Air’ in 2019.

At the start of the coronavirus pandemic, Martin Lohse, together with a team of scientists, published a widely acclaimed recommendation on how to tackle the crisis in stages. If the measures had been implemented appropriately, Germany might have been spared some of the problematic consequences of the lockdowns, said Hofer – for example, in schools, the economy and politics. In his acceptance speech, the award winner recalled Lorenz Oken, the co-founder of the GDNÄ, who enriched science two hundred years ago with fresh, unconventional ideas.

About the award

The Alexander von Humboldt Medal is awarded to distinguished individuals who have made an outstanding contribution to the further development of the Society of German Naturalists and Physicians. The medal commemorates the great naturalist and cosmopolitan Alexander von Humboldt (1769–1859), who played a decisive role in the early development of the GDNÄ. Since 2010, the medal has been awarded every two years.

Eröffnung der Büros Postplatz 1 © Paul Glaser

© MIKA-fotografie | Berlin

Professor Martin Lohse

About the recipient

Martin Lohse is Professor of Pharmacology and Toxicology, Managing Director of the Bavarian research company ISAR Bioscience in Martinsried, and a member of the Executive Board of the Society of German Naturalists and Physicians (GDNÄ). As its President from 2019 to 2022, he played a leading role in organising the Society’s 200th-anniversary celebrations in Leipzig, with the conference theme ‘Science in Pictures’ (PDF). He is the editor of the commemorative publication ‘Wenn der Funke überspringt’ (‘When the Spark Ignites’), published to mark the occasion. For his research into receptors, he received Germany’s highest scientific honour, the Leibniz Prize from the German Research Foundation, and many other awards.

Further reading

Students’ initiative: “Travelled to Bremen at their own expense”

“Travelled to Bremen at his own expense”

Franz Theodor Lenner (16) and Jonah Willy Winzig (16) travelled to the GDNÄ assembly in Bremen on their own initiative. They both attend the private secondary school Villa Elisabeth in Wildau, near Berlin. The state-recognised school places great emphasis on STEM education in small classes.

How did you find out about the conference?
Our science teacher, Dr Stefan Bläß, told us about it. In 2024, Mr Bläß arranged for some pupils from our school to travel to the conference in Potsdam. He spoke so enthusiastically about it that we subsequently bought tickets to Bremen at our own expense and booked a hotel. There are a few other pupils from our school here as well.

What are you hoping to gain from the conference?
We’re hoping to gain insights into current scientific research and have lots of fruitful discussions with professors. Last night we already had the chance to speak to NASA’s former chief scientist, Thomas Zurbuchen. We asked him about nuclear propulsion systems for spacecraft and about water reserves on Jupiter’s moons, and he explained everything to us very clearly. We simply want to learn as much as possible.

And is that working out so far?
The conference is exceeding our expectations. As soon as we arrived, we were taken straight to Paul Mühlenhoff. He introduced us to everyone. All the people we’ve spoken to have been very friendly and willing to share information. We’ve also just received an invitation to the ‘Overseas Night’ on Saturday evening – we’re really looking forward to that. We’re taking part in the careers advice session at lunchtime today. Career-wise, we’d both like to go into medicine. Perhaps we’ll also pick up a few ideas for our planned entry in the ‘Jugend forscht’ competition. We’ve already got some ideas for Alzheimer’s research and new treatment approaches for diabetes patients.

Professorin Eva-Maria Neher © Universität Göttingen/Peter Heller

© GDNÄ

Franz Theodor Lenner (16) and Jonah Willy Winzig (16) travelled to the GDNÄ assembly in Bremen on their own initiative.

Photo Journal: Daily updates from the 2026 GDNÄ Conference

Photo Journal

Daily updates from the 2026 GDNÄ Conference

A Nobel Laureate giving a lecture, the jGDNÄ on the podium, discussions during the coffee break, the atmosphere at the Congress Centrum Bremen: you can find daily updates on this page featuring highlights from the 134th Meeting of the Society of German Natural Scientists and Physicians. A picture accompanied by a brief caption – here we report concisely on key topics and interesting moments. A detailed photo report will be published on this website shortly.

Paul Mühlenhoff, der Leiter des GDNÄ-Schülerprogramms, grüßt vom Versammlungsort 2024 auf dem Campus Griebnitzsee der Universität Potsdam.

© GDNÄ

A view of the lobby of the Bremen Congress Center.

Thursday, September 17, 2026

Science-Slam auf der 133 Versammlung in Potsdam

© MIKA-fotografie | Berlin

School Programme 2026: Young people preparing for the 2026 Assembly.

Science-Slam auf der 133 Versammlung in Potsdam

© GDNÄ

A packed auditorium at the evening event “Science in 5 Minutes.” Around 500 participants are expected at the 134th GDNÄ meeting, including 150 high school and college students. The young people come from the Bremen region and all over Germany.

Science-Slam auf der 133 Versammlung in Potsdam

© GDNÄ

GDNÄ Vice-President Heribert Hofer with the winners of the ‘Science in 5 Minutes’ competition, as determined by the audio assessment. The deciding factor was the intensity of the audience’s applause, which was measured via an app. First place went to Anne Marie Bobes (20), who presented her project on the aerodynamics of birds; standing to her right is Lennard Kleemann, who took second place with his entry “Microfluidics: Bringing the Dead Back to Life.” On the far left: Paul Mühlenhoff, director of the GDNÄ student program; to his right is Professor Heribert Hofer, who plays a decisive role in shaping the student program.

Science-Slam auf der 133 Versammlung in Potsdam

© GDNÄ

A well-attended conference highlight: Professor Thomas Zurbuchen of ETH Zurich during his public evening lecture, “The Modern Search for Life in Space: From the Drake Equation to Astrobiology.”

Science-Slam auf der 133 Versammlung in Potsdam

© GDNÄ

A well-attended conference highlight: Professor Thomas Zurbuchen of ETH Zurich during his public evening lecture, “The Modern Search for Life in Space: From the Drake Equation to Astrobiology.”

Science-Slam auf der 133 Versammlung in Potsdam

© MIKA-fotografie | Berlin

Professor Heribert Hofer talking with young participants at the 2026 conference.

© MIKA-fotografie | Berlin

Professor Michael Dröscher (front left) with participants in the school program.

Science-Slam auf der 133 Versammlung in Potsdam

© GDNÄ

Science in 5 Minutes: In the packed Hanse Hall of the Bremen Congress Center, six high school students and six college students presented their projects to the audience. The topics ranged from a journey into the interior of a black hole to energy generated by microbes from plastic waste, to applications of microfluidics in medicine. GDNÄ Vice President Heribert Hofer moderated the evening event. The photo shows the competition winner giving her presentation. Anne Marie Bobes had already taken first place at the 2024 conference in Potsdam, where her topic was ‘Wind2Light’.

Science-Slam auf der 133 Versammlung in Potsdam

© GDNÄ

A well-attended conference highlight: Professor Thomas Zurbuchen of ETH Zurich during his public evening lecture, “The Modern Search for Life in Space: From the Drake Equation to Astrobiology.”

Science-Slam auf der 133 Versammlung in Potsdam

© GDNÄ

A well-attended conference highlight: Professor Thomas Zurbuchen of ETH Zurich during his public evening lecture, “The Modern Search for Life in Space: From the Drake Equation to Astrobiology.”

Friday, September 18, 2026

© GDNÄ

Professor Martin Lohse is being honored with the Alexander von Humboldt Medal for her great services to the GDNÄ. 

© MIKA-fotografie | Berlin

GDNÄ President Anke Kaysser-Pyzalla welcomes the participants to the 134th Assembly.

© MIKA-fotografie | Berlin

Opening addresses were given by Dr Henrike Müller, Bremen’s Senator for Science, Dr Kai Brüggemann (company director, President of the Industrie-Club and Managing Director of the 134th Assembly), and Professor Michal Kucera, Scientific Director of the 134th Assembly and Pro-Vice-Chancellor for Research and Transfer at the University of Bremen.

© MIKA-fotografie | Berlin

Opening remarks were given by Dr Henrike Müller, Bremen’s Senator for Science; Dr Kai Brüggemann (company director, President of the Industrie-Club and Managing Director of the 134th Assembly); and Professor Michal Kucera, pictured here, who is the Scientific Director of the 134th Assembly and Vice-Rector for Research and Transfer at the University of Bremen.

© MIKA-fotografie | Berlin

Lively discussions among the audience.

© GDNÄ

Paul Mühlenhoff has headed the GDNÄ’s Student Program since 2012.

© MIKA-fotografie | Berlin

Professor Jens Eisert during his lecture ‘What quantum computers of the future might be capable of – and what they might not’.

© MIKA-fotografie | Berlin

Following the Computer Science/Mathematics session, there was a lively discussion between the professors and representatives of the student program.

© GDNÄ

Franz Theodor Lenner (16) and Jonah Willy Winzig (16) travelled to the GDNÄ assembly in Bremen on their own initiative.

© MIKA-fotografie | Berlin

Lively discussions among the audience.

© MIKA-fotografie | Berlin

A well-attended opening event in the Hanse Hall at the Bremen Congress Centre.

© MIKA-fotografie | Berlin

Opening remarks were given by Dr Henrike Müller, Bremen’s Senator for Science, Dr Kai Brüggemann (company director, President of the Industrie-Club and Managing Director of the 134th Assembly – pictured here), and Professor Michal Kucera, Scientific Director of the 134th Assembly and Vice-Rector for Research and Transfer at the University of Bremen.

© MIKA-fotografie | Berlin

Professor Michael Dröscher with his favourite photograph, printed in large format, which shows him together with young conference participants. GDNÄ President Anke Kaysser-Pyzalla presented it to him in recognition of his services as Secretary-General of the Naturalists’ Society – a post from which Michael Dröscher will step down at the end of 2026. He will remain associated with the GDNÄ in his role as Treasurer.

© MIKA-fotografie | Berlin

Young women at the 2026 GDNÄ conference in Bremen.

© MIKA-fotografie | Berlin

A quick breath of fresh air: members of the support team outside the Bremen Congress Centre.

© MIKA-fotografie | Berlin

A hands-on session at the acatech Science and Technology Café: Cryptology – from secret messages of antiquity to the future of IT security.

© MIKA-fotografie | Berlin

Following the session on technology and engineering, the speakers (on the left: Professor Stefanie Reese) answered questions from the students.

Saturday, September 19, 2026

© MIKA-fotografie | Berlin

Jeannette Koch, a music therapy student and participant in the ‘Science in 5 Minutes’ competition.

© GDNÄ

At the first general meeting of the jGDNÄ in Bremen, two spokespersons were elected for the first time: Lennard Kleemann (pictured left), who is studying molecular biotechnology at the University of Heidelberg as well as medicine, and Nina Rack (right) – she is studying medicine at the University of Greifswald.

© MIKA-fotografie | Berlin

Newly elected: The new eight-member Executive Board of the jGDNÄ.

GDNÄ-Tagung 2024 in Potsdam: Ben Feringa © GDNÄ

© MIKA-fotografie | Berlin

Professor Beatriz Roldán Cuenya from the Fritz Haber Institute of the MPG in Berlin during her lecture ‘Catalysts: More dynamic than previously thought’.

© MIKA-fotografie | Berlin

Professor Michael Dröscher (centre) with members of the jGDNÄ.

© MIKA-fotografie | Berlin

At the poster exhibition.

© MIKA-fotografie | Berlin

Proud Science Slam participants with their certificates. They are flanked by Paul Mühlhoff (left), head of the GDNÄ school programme.

© GDNÄ

Professor Heribert Hofer spoke about his field research in the Serengeti. His unscheduled lecture focused on the causes of female dominance amongst spotted hyenas.

Anyone who took part in the ‘Science in 5 Minutes’ competition had the chance to learn a great deal about music therapy from Jeannette Koch. The 25-year-old (pictured left) is studying the subject at the private SRH University of Applied Sciences in Heidelberg and is passionate about her field: “Music therapy makes it easier to access emotions and creates a connection with people who are difficult to reach through language alone.” This includes premature babies as well as patients in a coma and people suffering from autism, depression or neurological conditions such as Parkinson’s and dementia. The effects of music therapy are demonstrable, says Jeannette Koch, for example through measurements of stress hormones, memory tests or gait analyses. In receptive music therapy, the patient consciously allows music to have an effect on them, whilst in active music therapy the focus is on making music together. Jeannette Koch explains: “During our degree course, alongside piano, guitar and drums, we also learn psychotherapeutic methods to help our patients connect their feelings and thoughts.” The young woman has been playing the French horn since primary school: “Playing together in an orchestra still makes me happy to this day.” After completing her degree, she sees herself working as a researcher or as a music therapist in a clinic: “Children and young people are particularly close to my heart. I want to support them in finding a good path in life.”

© MIKA-fotografie | Berlin

A standing ovation for the organisers of the GDNÄ Science Café ‘NextMed Dialog – Young Perspectives for the Medicine of Tomorrow’. 

© MIKA-fotografie | Berlin

Professor Ruth Bieringer, President of the German Chemical Society, during the ceremony honouring distinguished members.

© MIKA-fotografie | Berlin

Dr Ekkehard Winter moderated the GDNÄ Science Café ‘NextMed Dialog’.

© MIKA-fotografie | Berlin

How simple can living systems be? Petra Schwille, a professor from Munich at the Max Planck Institute for Biochemistry, explored this question in her lecture.

© GDNÄ

Many guests from the city attended the public lecture by Nobel Prize winner in Chemistry Benjamin List on organocatalysis at the Congress Centrum Bremen.

© GDNÄ

A jubilant institute: Professor Benjamin List showed a photograph of himself surrounded by his colleagues following the announcement of the 2021 Nobel Prize in Chemistry.

© GDNÄ

The little ones at the front, the big ones at the back – that was the instruction for the group photo featuring 150 school pupils. And yet the stage at the Congress Centre was almost too small to accommodate everyone.

Sunday, September 20, 2026

© MIKA-fotografie | Berlin

Professor Peter Boor delivering his lecture on ‘AI in pathology’.

© MIKA-fotografie | Berlin

Are there any questions from the audience? Indeed there were, and they were asked with great enthusiasm.

© MIKA-fotografie | Berlin

Say it with flowers: on behalf of the jGDNÄ, Marlene Anders and Lennard Kleemann (right) thanked Katja Diete and Sylvia Landeck from the secretariat for their excellent cooperation.

© MIKA-fotografie | Berlin

School Programme 2026: During the four days of the conference, many new friendships were formed.

© MIKA-fotografie | Berlin

Unfortunately, Professor Sabine Oertelt-Prigione was unable to attend in person. She joined the event online to deliver her lecture ‘The significance of gender in biomedical research’.

© MIKA-fotografie | Berlin

GDNÄ member Mark Benecke with a young conference participant in the foyer of the Congress Centre. Mark Benecke is a forensic biologist in Cologne and gave a talk as part of the school programme at the invitation of the jGDNÄ.

© MIKA-fotografie | Berlin

The newly elected eight-member coordination team of the jGDNÄ.

© MIKA-fotografie | Berlin

A look ahead to the 2028 meeting: The future GDNÄ President, Professor Ferdi Schüth of the Max Planck Institute for Coal Research, invited all members of the Natural Scientists’ Society to Essen.

Watch the live stream of the Conference in Bremen in real time

Livestream

Experience the 2026 Conference Live

The Nobel Lecture will focus on what is perhaps humanity’s most important technology: catalysis. Another public lecture will explore how the search for life in space is being conducted today. The opening ceremony promises exciting presentations, music, and the awarding of the Alexander von Humboldt Medal. In 2026, too, many young people will contribute to the success of the conference. Those who attend the 134th GDNÄ Assembly in person will experience a celebration of science with many highlights.

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More Information

But even those who cannot be there in person are invited to participate in real time. All lectures in the Hansesaal of the Congress Centrum Bremen will be livestreamed, as will the opening ceremony with welcoming remarks on September 18 and the public lectures by Nobel Laureate in Chemistry Professor Benjamin List, “Organocatalysis for Our World” (Saturday, September 19, 6:30 p.m. to 8:00 p.m.) and Nobel Prize in Chemistry laureate Professor Thomas Zurbuchen’s “The Modern Search for Life in Space – From the Drake Equation to Astrobiology” (Thursday, September 17, 8:00 p.m.).

Access to the livestream is free of charge; no special technical requirements are necessary. All you need is a digital device and a good internet connection to watch live.

Note: The video recordings of presentations and other contributions – which will be posted on the GDNÄ’s own video channel after the 134th meeting and are also available free of charge – can be accessed indefinitely.

 

Campus Griebnitzsee der Universität Potsdam © K. Fritze

@ M3B GmbH

The large Hanseatic Hall in the Congress Centrum Bremen has been booked for the 2026 GDNÄ Assembly.

Further Information::