Title: Kli͡uch t͡sarstva nebesnogo i nashee khrystii͡anskoe dukhovnoe vlasty nereshymyĭ uzel
Subjects: Apologetic works, Relations, Orthodox Eastern Church, History, Catholic Church
Places: Ukraine
People: Oleksandr Konstantynovych Ostrozʹkyi kniazʹ (-1603)
Time periods: 16th century