a person in the record
Johann Schweigger
German chemist, physicist, and professor1779 to 1857
Wikidata names Franz August Wolf, Georg Friedrich Hildebrandt, Johann Tobias Mayer, and Karl Christian von Langsdorf as doctoral advisors, lists 3 doctoral students, and lists 1 person they taught. Linked to Wikidata, Mathematics Genealogy Project, and 5 other registers.

How to read the markscited by a repository's recordstated by Wikidata or indexed by OpenAlexclaimed on an ORCID list, or inferred
Advisors on Wikidata4
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
- stated by Wikidata
- stated by Wikidata
- stated by Wikidata
Students on Wikidata3
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1804
- stated by Wikidataborn 1814
- stated by Wikidataborn 1822
Taught1
Wikidata's "student of" and "student" statements: a line of training beside the lineage, never a thesis supervision and never counted with one.
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1822
The line above and below4 steps
The advisors of their advisors, four steps up at most, in the thesis records and on Wikidata, each kind marked; a person in both is listed once.
- 1 step up
stated by WikidataFranz August Wolfstated by WikidataGeorg Friedrich Hildebrandtstated by WikidataJohann Tobias Mayerstated by WikidataKarl Christian von Langsdorf
- 2 steps up
stated by WikidataAbraham Gotthelf Kästnerstated by WikidataGeorg Christoph Lichtenbergstated by WikidataJohann Friedrich Gmelin
- 3 steps up
stated by WikidataChristian August Hausenstated by WikidataFerdinand Christoph Oetingerstated by WikidataPhilipp Friedrich Gmelin
- 4 steps up
stated by WikidataBurchard Mauchartstated by WikidataJohann Andreas Planerstated by WikidataJohann Christoph Wichmannshausen
Below them, within 3 steps, the record reaches 74 people: 74 stated by Wikidata.
Education and career3
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- undated
- undated
- undated