R’ Yehoshua of Cracow (1578-1648): The Original פְּנֵי יְהוֹשֻׁעַ

First he learned the Gemara by itself, and he was always מְכַוֵּן לְפֵרוּשׁ רַשִׁ"י. Hence his מְגִנֵּי שְׁלֹמֹה