Eustachy Trepka

[3] Eustachy attended the Lubrański Academy in Poznań where he was mostly likely a student of the Lutheran theologian Christoph Hegendorff.

[3] In the 1540s, together with his sponsor Andrzej Górka, Trepka traveled to Wittemberg and met Martin Luther and his collaborator Philipp Melanchthon.

There, Trepka was tasked by the Duke with carrying out translations of religious work from Latin into Polish, and he was employed in the print shop of Hans Daubmann.

[5] Works translated by Trepka include Mleko duchowne dla karmienia i wychowywania chrześcijańskich dziatek, 1556 ("Spiritual milk for nourishment and upbringing of Christian children"),[5] by the Spanish theologian Juan de Valdés, and the Large Catechism of Johannes Brenz.

[6] Eustachy Trepka was an ideological opponent of the Polish Protestant evangelical reformer Jan Łaski and the Congregationists of Greater Poland.