| Date | Person | Description |
|---|---|---|
| Fröhlich, Erasmus | Teacher of mathematics, Hebrew, Greek, history, geography, heraldry, numismatics in Vienna | |
| Fröhlich, Erasmus | Khell von Khellburg succeeded Fröhlich as a teacher of numismatics in Vienna | |
| 1758 – 1772 | Khell von Khellburg, Josef | Teacher of numismatics in Vienna |