Celebrity Signatures
Signature of Johann Martin Schleyer

Johann Martin Schleyer

German Catholic priest (1831–1912)

† 1912-08-16 · Authors · Writer; cross-wiki notability: present on 45 language Wikipedias
License & source
Public domain · Wikidata
Life

Johann Martin Schleyer was born on July 18, 1831 in Oberlauda and died on August 16, 1912 in Constance, aged 81. Recorded occupations: writer, Catholic priest, interlinguist, language inventor, poet and cleric. Country of citizenship: Grand Duchy of Baden. Positions held include Cifal. Fields of work: linguistics, Catholic Church, Catholic literature and interlinguistics. Notable works include “Volapük”.

At a glance
Born
July 18, 1831 · Oberlauda
Died
August 16, 1912 · Constance
Age at death
81
Citizenship
Grand Duchy of Baden
Occupations
writer, Catholic priest, interlinguist, language inventor, poet, cleric
Positions held
Cifal
Notable works
Volapük
Wikipedia editions
45 languages
Signature licence
Public domain
About this signature

This image of Johann Martin Schleyer's signature comes from Wikimedia Commons (Wikidata P109 signature file). Its licence is recorded as Public domain, with the file credited to Johann Martin Schleyer. It is linked to the person through Wikidata property P109 (signature), which ties a documented individual to a specific archived file. We show the file as published and do not redraw or retouch it. Deceased 1912: low publicity-rights risk.

Biographical facts: Wikidata Q12712 (CC0), retrieved 2026-10-13. Read more about Johann Martin Schleyer on Wikipedia.

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