Petro S. Mohyla (ca. 1596–1647) was born into a noble Moldavian family who later migrated to Ukraine. After having joined the Kiev Monastery of the Caves in 1625, Moghila became Metropolitan of Kiev in 1633. He is most famous for having founded the Kiev Mohyla Academy, a collegium for theological students from all over Europa which became one of the most important centres for Orthodox intellectuals. The classes included several modern and ancient languages, philosophy, mathematics, astronomy, history, and music.
L. Osipov, St Peter Moghila (ca. 1596–1647), etching, 1842, in: Banshtyn-Kamenskii, Dmitri N.: Istoria Maloi Rossii: S deviatnatsat’u portretami, piat’u risunkami, dvatsat’u shest’u raskrashennymi isobrazheniami malorossian i malorossianok b starinnich odezhdach ..., without place 1842; source: Wikimedia Commons, public domain.