Lev Krevza's A Defense of Church Unity (1617) and Zaxarija Kopystens'kyj's Palinodia or Book of Defense of the Holy Apostolic Eastern Catholic Church and Holy Patriarchs (1620-1623), Parts 1 and 2

Lev Krevza's A Defense of Church Unity (1617), on the Uniate side, and Zaxarija Kopystens'kyj's Palinodia (1621), a monumental defense of the Eastern Church, are arguably the most erudite, comprehensive, and persuasive works on the ecclesiastical debate between these two groups. This two-volume work illuminates the intense struggle ignited when, at the time of the Union of Brest (1596), a large part of the Ruthenian ecclesiastical hierarchy declared itself in communion with the Roman Catholic Church. Bohdan Struminski provides English translations from the original Ruthenian and Middle Polish texts.