Zwelfer [Zwelffer, Zwölfer], Johann

1. Dates

Born: Rhenish Palatinate, 1618 died; probably Vienna, 1668.

Died: --

Dateinfo: 50

Lifespan:

2. Father

Occupation: Unknown

No information on financial status.

3. Nationality

Birth: Rhenish Palatinate, Germany

Career: Vienna, Austria

Death: Vienna, Austria (presumably)

4. Education

Schooling: Padua, M.D.

After working as an apothecary for 16 years, Zwelfer went to Padua to study medicine, and received an M.D. there. Even with the unusual chronology, I'll assume the equivalent of a B.A.

5. Religion

Affiliation: Catholic (by assumption from his career).

6. Scientific Disciplines

Primary: Pharmacology

Subordinate: Chemistry, Botany

7. Means of Support

Primary: Apothecary, Medicine

He worked initially for 16 years in his native region as an apothecary.

After receiving his M.D., he moved to Vienna, where he apparently stayed for the rest of his life. He reportedly taught chemistry and was physician to the court, but these reports are undocumented. Nevertheless, in the silence I assume, especially in light of his background as apothecary, that he put the medical degree to use.

8. Patronage

Type: None

He might have had imperial patronage in Vienna, but I have found no confirmation of this. I won't list it.

9. Technological Involvement

Types: Pharmacology, Medical Practice

10. Scientific Societies

Memberships: None

Sources

1. Christian Gottlob Joecher, Allgemeines Gelehrten-Lexicon, (Leipzig, 1750-1751; repr., Hildesheim: Georg Olms, 1960).
2. Partington, 2, 296-7.

Compiled by:

Richard S. Westfall

Department of History and Philosophy of Science

Indiana University

Note: the creators of the Galileo Project and this catalogue cannot answer email on geneological questions.