Ansbach, 17 December 1833: the death of Kaspar Hauser

On the afternoon of 14 December 1833 a young man known to his contemporaries only as Kaspar Hauser walked back into the schoolmaster Johann Georg Meyer’s house on Pfarrstrasse in Ansbach with a deep stab wound to the left chest. He said he had gone to the Hofgarten, the court garden of the old Margravial residence, at the invitation of a stranger who had promised information about his mother. The stranger, he said, had handed him a small violet silk purse and stabbed him as he reached for it. He gave a brief description of a moustached man and named no other witness. The wound opened the diaphragm and the lower lobe of the lung. He died on the evening of 17 December 1833, aged twenty-one by the dating he had carried with him since he first appeared in Nuremberg five and a half years earlier.

The Ansbach court of inquiry ran for the better part of a year and on 11 September 1834 ruled that the perpetrator could not be identified and that self-inflicted injury could not be ruled out. That ruling has never been formally superseded. A 2005 peer-reviewed forensic re-analysis by the Institute for Forensic Medicine at the University Hospital Giessen concluded that a wound inflicted purely as self-display was unlikely but that neither a suicidal stab nor a homicidal act could be excluded. The case is in that sense still open at law and still open in the journals.

A separate question, the one most readers know the case by, was answered in a different direction in September 2024. A mitochondrial-DNA study led by Walther Parson in Innsbruck, with collaborators at Potsdam, Leicester, and Bath, authenticated three independent hair samples attributed to Hauser at 99.9994 percent confidence and found a maternal-line signature that does not match the House of Baden. The strict form of Anselm von Feuerbach’s 1832 conjecture, that Hauser was the hereditary prince of Baden switched at birth and concealed for sixteen years, is now in serious scientific difficulty. The two questions decouple. Hauser can be not a prince and still not an impostor, and still have been killed.

This piece keeps three things apart. What is documented. What the evidence shows. And what remains only a hypothesis.

The documented account

On the afternoon of Whit Monday, 26 May 1828, a youth in his middle teens was found in the Unschlittplatz in Nuremberg in apparent confusion. He carried two letters addressed to Captain von Wessenig of the 4th Squadron, 6th Light-Horse Regiment. The first was headed “Von der Bäierischen Gränz / daß Orte ist unbenant / 1828,” from the Bavarian border, the place unnamed. It stated that the writer had had the boy in custody since 7 October 1812, had taught him reading and Christian religion, but had never let him take a step outside, and offered Wessenig the choice of enlisting the boy or hanging him. A second letter, purporting to be from the mother, gave his name as Kaspar, his birth as 30 April 1812, and his deceased father as a cavalryman of the same regiment. Both originals are at the Stadtarchiv Nürnberg. Internal evidence has long been read as pointing to one writer for both, possibly Hauser himself.

Hauser could write his name, gave a thin verbal account of himself, and walked with difficulty. He was placed first in police custody in the tower of Vestnertor at Nuremberg Castle, then with the schoolmaster Friedrich Daumer, who began to educate him in October 1828. Under months of questioning Hauser gave a narrative of having been kept all his remembered life in a small darkened cell, fed on bread and water, with a wooden horse as his only toy, by a man whose face he had never seen.

The case attracted the attention of Anselm Ritter von Feuerbach, President of the Bavarian Court of Appeals at Ansbach and the most eminent criminal jurist of his generation. Feuerbach published Kaspar Hauser. Beispiel eines Verbrechens am Seelenleben des Menschen in Ansbach in 1832, the foundational document of the case. It is also the source of the strong dynastic-conspiracy reading: that Hauser was the legitimate prince of Baden, born to Grand Duke Karl and Stéphanie de Beauharnais on 29 September 1812, switched with a dying infant, and hidden to clear the succession for the Hochberg morganatic line. Feuerbach died on 29 May 1833, seven months before Hauser.

Two earlier injuries during the Nuremberg years were read in opposing ways at the time. On 17 October 1829, at Daumer’s house, Hauser was found bleeding from a forehead wound, which he attributed to a hooded assailant. The police searched without result; contemporary medical opinion held that the cut could have been self-inflicted with a razor. On 3 April 1830, at the household of the municipal authority Johann Biberbach, a pistol shot was heard in his room. He was found unconscious with a head wound, and stated that he had inadvertently torn down a pistol while reaching for books. The wound was assessed as too superficial for a gunshot. Frau Biberbach left a paper trail describing what she called Hauser’s horrendous mendacity and art of dissimulation. He was moved in May 1830 to the Tucher household.

In December 1831 Philip Henry Stanhope, 4th Earl Stanhope, secured custody and became Hauser’s patron. Stanhope financed a journey to Hungary in pursuit of a name Hauser had spoken; Hauser failed to recognise any building, landmark, or word. In late 1831 Stanhope transferred him to Ansbach, to Meyer’s household, with a small pension, and did not bring him to England as he had promised. His letter to Feuerbach of 5 October 1832 records growing doubts.

Searched at Meyer’s direction after Hauser returned wounded on 14 December 1833, the Hofgarten yielded a small violet silk purse containing a single sheet folded in a triangular shape and written in mirror script. The message says, in substance, that Hauser will be able to describe the writer exactly; that to spare him the effort, the writer himself will say where he is from; that he comes from the Bavarian border, on the river; and that his initials are M. L. Ö. The orthography and grammar match Hauser’s known errors. The original is in the case file at the Staatsarchiv Nürnberg.

Dr Albert of Ansbach conducted the autopsy on 18 December. A second physician, Friedrich Wilhelm Heidenreich, separately published the observation that Hauser’s brain showed unusually small cortical surface and few distinct gyri, which he read as evidence of long developmental deprivation. The Ansbach court of inquiry pursued the investigation through 1834 and on 11 September 1834 issued the ruling that the perpetrator could not be identified and that self-inflicted injury could not be ruled out.

Hauser was buried in the Stadtfriedhof at Ansbach. The Latin inscription on the gravestone reads HIC JACET CASPARUS HAUSER, AENIGMA SUI TEMPORIS, IGNOTA NATIVITAS, OCCULTA MORS, MDCCCXXXIII: here lies Kaspar Hauser, riddle of his time; his birth unknown, his death mysterious; 1833. A neo-Gothic memorial stone, later erected on the spot where he said he had been attacked, bears the inscription HIC OCCULTUS OCCULTO OCCISUS EST: here a mysterious one was killed in a mysterious way. In 1835 Stanhope published Materialien zur Geschichte Kaspar Hausers in Heidelberg, declaring Hauser an impostor.

The evidence

The 1828 letters. Originals at the Stadtarchiv Nürnberg. Transcribed in Feuerbach 1832. Internal evidence has long been read as indicating common authorship, possibly by Hauser himself.

Feuerbach’s 1832 monograph. At Project Gutenberg release 76711. Feuerbach was Bavaria’s most senior criminal jurist, and his book crystallised the dynastic-conspiracy reading. It is a foundational primary source for the case and a primary source for the prince-of-Baden theory, not independent corroboration of it. Feuerbach died seven months before Hauser; his judgement on the cause of death cannot enter the file.

The 1829 and 1830 prior incidents. Documented in the Nuremberg police file and the Biberbach correspondence. Hauser’s testimony of a hooded attacker in 1829 is on the record; so is the contemporary medical opinion that the cut could have been self-inflicted. Frau Biberbach’s assessment of Hauser’s mendacity is part of the 1830 record. Both files remained open without a perpetrator.

The violet purse and the mirror-writing note. Original in the case file at the Staatsarchiv Nürnberg. The Ansbach court and later scholarship have noted that the note’s orthography and grammar match Hauser’s known errors, and that the mirror-writing format, achievable by writing on tissue paper or a folded sheet, is consistent with self-authorship. The “Bavarian border” formula echoes the heading of the first 1828 letter. Reproduced in Hesse and Pies (1996).

The autopsy and the court ruling. Dr Albert’s autopsy report of 18 December 1833 recorded the stab wound, injury to the diaphragm and lower lobe of the lung, internal haemorrhage, and pleural inflammation as cause of death. Heidenreich’s observations on the brain stand at one remove. The court of inquiry’s ruling of 11 September 1834 concluded that the perpetrator could not be identified and that self-inflicted injury could not be ruled out. Both files are at the Staatsarchiv Nürnberg.

Stanhope’s Materialien of 1835. Stanhope’s posthumous case for Hauser as an impostor. It is heavily motivated: Stanhope had spent significant sums on him, had withdrawn support before the death, and had reason to vindicate the withdrawal. His retrospective verdict belongs on the record. It does not close down a question the contemporary court left open.

Modern forensic re-analysis: Risse, Bartsch, Dreyer, and Weiler, 2005. Archiv für Kriminologie 216, pp. 43-53. The Institute for Forensic Medicine at the University Hospital Giessen re-analysed the autopsy and witness statements under modern criteria. The authors concluded that a wound inflicted purely for self-injury was unlikely, the depth and trajectory exceeding the standard demonstrative pattern, but that neither a suicidal stab nor a homicidal act could be excluded. The cause-of-death question is genuinely open on the present forensic evidence.

1996 Munich and Birmingham blood analysis. Reported in Der Spiegel, November 1996. Mitochondrial DNA from a bloodstain on underclothing attributed to Hauser was compared to living maternal-line descendants of the House of Baden. The haplotypes did not match. Supporters of the prince hypothesis challenged the provenance of the stained garment.

2002 Münster hair analysis. University of Münster. Mitochondrial DNA from hair samples returned a result that prince-hypothesis supporters read as consistent with a Baden line; the Münster team itself was more cautious. The 2024 Parson study attributes the partial-match reading to sensitivity limits of the then-current Sanger methods on degraded fragments.

2024 Innsbruck mitochondrial-DNA study. Parson, Amory, King, Preick and others, iScience 27:9, article 110539, 20 September 2024. Three independent hair-lock samples attributed to Hauser were analysed by Primer Extension Capture Massively Parallel Sequencing. They share an identical mitochondrial signature, which authenticates the samples themselves at 99.9994 percent confidence. The figure is sample-authentication confidence, not identity confidence. The authenticated mitotype falls in haplogroup W and diverges from the House of Baden’s H1bs line. The strict Baden-prince hypothesis is ruled out. The authors add that this is not evidence for the impostor theory either. Hauser may have been neither.

The 2023 cowpox-scar finding. A medical-historical study identified cowpox vaccination scars on documented images of Hauser, indicating he had received the standard Bavarian smallpox vaccination, mandatory from 1807. This is inconsistent with his account of total isolation from infancy. It does not by itself decide either the identity or the cause-of-death question.

The Hofgarten and the gravestone. Both are extant and bear the Latin inscriptions quoted above. The bronze double figure in central Ansbach, the Kaspar-Hauser-Denkmal of 1981, is artistic interpretation, not evidence.

Hypotheses and open questions

The cause-of-death question and the identity question are reported here independently. The first is genuinely unresolved on the present forensic evidence. The second has been narrowed sharply in its strongest form by the 2024 mitochondrial-DNA work. Each hypothesis is labelled and attributed. None is asserted as fact.

1. Homicide by an unknown assailant in the Hofgarten. Hauser’s own account on 14 December 1833; Feuerbach 1832 as background frame; Daumer; later revisionists including Hermann Pies. Against it: no corroborating witness; the note’s orthography and “Bavarian border” formula matching the 1828 letter; the violet-purse-and-message pattern recapitulating the 1829 and 1830 incidents; the 2005 finding that homicide cannot be confirmed.

2. Self-inflicted demonstrative wound that turned fatal by miscalculation. Stanhope 1835 in strong form; the 1834 ruling as open form; modern impostor-school scholarship. The pattern of the 1829 and 1830 incidents; the orthography of the mirror-writing note; the cowpox-scar finding. Against it: the 2005 finding that the depth and trajectory of the chest wound exceed the standard demonstrative-self-wounding pattern.

3. Suicide presented as homicide. The open form of the 1834 ruling; some twentieth-century revisionist literature including Hesse; the 2005 paper’s non-exclusion of suicide. Against it: no documented suicidal ideation in Hauser’s preceding behaviour or in his statements to Meyer in the three days he survived.

4. Hereditary prince of Baden. Feuerbach 1832; Daumer; the Baden-prince literature including Kruse, Mayer, and Pies. The timing of Stéphanie de Beauharnais’s son’s birth and recorded death in 1812; the alleged but unevidenced baby-swap by Louise Caroline of Hochberg; the 2002 Münster reading. Against it: no documentary evidence of a swap; the 1996 non-match; the 2024 Parson W versus H1bs mitotype result. The strict prince hypothesis is in serious scientific difficulty.

5. Pure impostor. Stanhope 1835; modern impostor-school scholarship including, weakly, Andrew Lang. The contradictions in Hauser’s testimony; the inconsistency between his claimed isolation and his physical condition; the cowpox-scar finding. Against it: Stanhope’s motivation; the 2005 finding that the fatal wound is not a textbook demonstrative self-wounding; Parson et al.’s note that ruling out the Baden line is not evidence for the impostor reading either.

6. Other aristocratic origin. Hungarian-Maytheny or other German-noble lines. Hauser’s claimed recognition of Hungarian fragments; the Stanhope-financed Hungarian journey of 1831. Against it: no documentary or genetic evidence; the journey produced no recognition.

What remains unknown

On the present record, the cause-of-death question is open. The mirror-writing note in Hauser’s own orthography, the violet purse, and the rhyme between the 1833 wounding and the 1829 and 1830 incidents pull toward self-authorship. The depth and trajectory of the chest wound pull toward something more serious than a demonstrative self-cut. The court left the question open. The forensic file leaves it open. We do too.

The identity question has been narrowed in its strongest form. The 99.9994 percent figure is about the hair samples themselves, not about whose they were. The authenticated mitotype in haplogroup W diverges from the House of Baden’s H1bs line, and the strict Feuerbach reading is ruled out at high confidence. Parson and his co-authors are careful in print that this does not vindicate the impostor reading. Hauser may have been neither a prince nor a fraud. The weaker forms of the dynastic argument and the broader question of who he actually was remain formally open.

The cultural overlay has carried much of the case. Jakob Wassermann’s 1908 novel Caspar Hauser oder Die Trägheit des Herzens fixed the wronged-prince image. Werner Herzog’s 1974 Jeder für sich und Gott gegen alle fixed the holy-innocent image. None of those readings are evidence. They are named here because the cultural accusation has named them.

The honest closing the file supports is the one the gravestone gives, with the prince theory now removed. The birth was unknown. The death was mysterious. The Bavarian court of inquiry said so in 1834. The forensic medicine of 2005 said so. The mitochondrial DNA of 2024 said so about who he was not, and declined to say who he was.

Sources

The 1828 letters at the Stadtarchiv Nürnberg. The Hauser case file at the Staatsarchiv Nürnberg, holding the violet purse, the mirror-writing note, Dr Albert’s autopsy report, and the 1834 court ruling. Feuerbach 1832 at the Internet Archive and Project Gutenberg. The Bavarian Palaces Administration page for the Hofgarten and the Stadtfriedhof Ansbach page for the grave. Risse et al. in Archiv für Kriminologie in 2005. Parson et al. in iScience in 2024. Andrew Lang’s 1904 essay. Encyclopaedia Britannica, History Today, CNN, and The Local Germany as general-readership summaries. Stanhope’s Materialien of 1835 and Hesse and Pies’s Wahrheit und Falschmeldung of 1996 are cited above.