Johann Mannhardt
Illustration — Johann Mannhardt. • Illustration — Clock designed by Mannhardt. Johann Mannhardt (August 31, 1798 – August 25, 1878) was a German clockmaker, mechanic, and inventor. Mannhardt was born in Tegernsee, and worked initially as a goatherd.
Johann Mannhardt

Karel K. · Werbeschrift der Turmuhrenfabrik Joh. Mannhardt, 1886 · Public domain
- Born
- 1798 · Gmund am Tegernsee.
- Died
- 1878 · Munich.
- Nationality
- German Empire
- Occupation
- inventor · watchmaker · mechanic
- Languages
- German
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
Illustration — Johann Mannhardt. • Illustration — Clock designed by Mannhardt. Johann Mannhardt (August 31, 1798 – August 25, 1878) was a German clockmaker, mechanic, and inventor. Mannhardt was born in Tegernsee, and worked initially as a goatherd.
Admitted source layer · organised and presented by VALÉORINE
Reference Check
Propose documentary evidence for Johann Mannhardt. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.
Sign in to contribute
World of VALÉORINE
Documentary connections
Only confirmed graph relationships appear here. Images are shown only when their identity and reuse rights both pass the documentary gate.
Documentary evidence
Documentary basis
Authority files
wikidata · Q103677 · wikipedia · Johann Mannhardt
In this article
Biography
Biography
He learned the clockmaking trade, however, and developed a strong talent for mechanical work. In 1826 he built a clock for the clocktower in Egern. In 1844 he moved to Munich, where he designed a new lead-sealing machine and oil mill, as well as the iron framings for the skylights on the roof of the Alte Pinakothek. He also built a number of machines, including saws, lathes, and peat presses, many of which he improved in ways that were copied elsewhere. In addition, he designed the guillotine that was used in Germany for carrying out the death penalty for the next hundred years or so. Mannhardt continued to work at clockmaking as well, particularly turret clocks for clock towers, and equipped the clocktowers in a large number of European cities, as well as in the United States.

Grave of Johann Mannhardt
HubertSt
Life and career
Dated record
Life and career
The full dated record · 2 entries
1798
Johann Mannhardt born.
1878
Johann Mannhardt died.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
Gmund am Tegernsee.
Birth place
Munich.
Death place
Literature
Literature
Literature
Mannhardt, Johann Wilhelm Emanuel, Religion Past and Present
Mannhardt, Johann Wilhelm Emanuel, Enzyklopädie des Märchens Online
Scholarly footprint
Literature
Scholarly footprint
A count of publications is evidence of attention, not of standing, and is given here only as a measure.
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
reference work
Secondary witnessreference work
Secondary witness
People, houses and institutions
Knowledge graph
People, houses and institutions
Teachers, collaborators, publishers and institutions recorded against this person, each on a stated basis.
Citizenship
1- German EmpirePlace
Established from a fact already recorded on a verified source.
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
Elsewhere in Watches
318 published records in this field, each with its sources named.
- Jiří KrytinářArtist
- Joachim GrallertArtist
- Johan LindquistArtist
- Johann Baptist BehaArtist
- Johann Rudolf StadlerArtist
- Johann Wilhelm Gottlob BuzengeigerArtist
- Johannes EmdeArtist
- John ArnoldArtist
Best supported in this field
For owners
Own a work by Johann Mannhardt?
A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.