| Date | Person | Description |
|---|---|---|
| Krüger, Oswald | Krüger studied mathematics, architecture and astronomy in Rome under Grassi and Grienberger | |
| Siekierzyński, Tomasz | Siekierzyński studied mathematics under Grodzicki in Lviv | |
| Siekierzyński, Tomasz | Hoszowski studied mathematics under Siekierzyński in Przemyśl in a specially designed course |