| Date | Person | Description |
|---|---|---|
| 1760 – 1761 | Hoszowski, Ludwik | Teacher of rhetoric in Zhytomyr |
| 1768 – 1773 | Hoszowski, Ludwik | Teacher of mathematics, astronomy in Lviv |
| 1768 – 1773 | Hoszowski, Ludwik | Between 1768 – 1773, Hoszowski established an astronomical observatory in Lviv |