History
The History of the Student Prison
When the university was founded, it was granted the privilege of exercising its own jurisdiction over its members. A Karzer sentence is already documented for 1387. For a time, convicted students were held in the city's prisons; it was not until the 16th century that the university had its own Karzer. When the university building was reconstructed starting in 1712, two cells were installed beneath the staircase, whose door can still be seen today in the grand Baroque staircase hall. These cold, damp rooms soon came to be regarded as unhealthy, and many students preferred expulsion from the university to serving their sentence there. Eventually, the Baroque house at Augustinergasse 2, adjoining the Old University, was converted for this purpose. From 1823, five cells were available here.
The building's caretaker, who also acted as a kind of university police officer, lived in the same house. Students often mangled his official title, "Pedell" (beadle), into "Pudel" (poodle).
In 1868, the university's privileges were abolished, and students became subject to general state law. Disciplinary offenses, however, remained under academic jurisdiction, which could impose up to four weeks of Karzer detention or expulsion from the university.
Typical offenses included disturbing the peace at night through loud singing, public misbehavior after excessive drinking, smashing streetlamps, nocturnal skinny-dipping in the marketplace fountain, dueling, or resisting authority — usually in the form of teasing and mocking police officers. In the later 19th century, some students even considered it a kind of sport to be sentenced to the Karzer at least once during their studies. The walk to confinement was often staged as a carnival-like parody of authority: fellow students would dress up as judges, executioners, and mourning women, escorting the condemned to his cell amid great commotion.
In theory, students could still attend lectures next door in the main university building despite their detention. They were also allowed to bring their own bedding, items for a hobby (perhaps a paint box?), meals delivered after the initial days of bread and water, and even visitors. By the 1880s, life in the Karzer was generally considered comfortable and entertaining. As a result, detention was often used less as punishment and more as an opportunity to skip lectures, play cards at length, and above all, decorate the walls and ceilings with paintings and poems. These frequently feature the crests, monograms, and colors of student fraternities, in which roughly a third of students were organized — mostly those with sufficient means to afford the fees charged for admission, accommodation, release, as well as firewood and light.
In 1886, a Heidelberg student penned a wistful farewell poem celebrating his favorite haunts. Alongside his regular tavern and the window of his sweetheart's room, he also mentions the Karzer and the neighboring lecture halls:
In the Augustinergasse
There's another house I know;
Förster, servant of the Senate,
Tends it, coming to and fro.
Of that house I know but little,
Save the floor that's up above,
Where a merry band of artists
Filled the walls with what they love.
Of the larger house beside it,
Where the halls stretch high and wide,
Less I know – and so, discreetly,
Here the singer's tact shall guide.
Clearly, these sentences were not taken very seriously, and they certainly did nothing to instill remorse in the inmates. Whether this behavior reflected the spirit of the age and the ideals of masculinity under the Kaiserreich, or simply pointed to a sluggish administration, it was not until 1908 that the Ministry of Justice in Karlsruhe began considering whether Karzer detention was still appropriate. The last inmate is recorded in the Karzer register in February 1914.
Even during its active years, the Heidelberg Karzer was a unique monument to academic special jurisdiction and attracted tourists. Some visitors — particularly ladies — were so taken with the inmates that they arranged for "solid and liquid sustenance" to be delivered from the finest inns. Mark Twain noted in 1887: „It is questionable if the world's criminal history can show a custom more odd than this”
Regarding the decoration of the walls and ceilings, one former inmate wrote: "These artistic products are recommended to the protection of the public." Even the students themselves, it seems, were aware of the value and fragility of their artwork. In keeping with this appeal, the delicate paintings are repeatedly stabilized and cared for by specialists. The most recent, particularly extensive restoration work was completed in 2024.
The greatest threat to these unique works of art is the public itself: even a light touch of a finger can rub off paint and trigger chemical decay. Anyone who accidentally brushes the wall with their back — or even a backpack — can destroy several layers of the historic paintings at once.
For the sake of the historical inmates, and for future generations alike, we therefore ask you: please help preserve this unique cultural monument through mindful and respectful behavior!