Columbia subject headings:
Catholic Church--Foreign relations--Poland--Sources.
Diplomats--Poland--Correspondence.
Jerzy, z Tyczyna, approximately 1510-1586.
Kromer, Marcin, 1512-1589--Correspondence.
Poland--Foreign relations--Catholic Church--Sources.
Harvard subject headings:
Catholic Church--Foreign relations--Poland--Sources.
Catholic Church--Foreign relations--Poland.
Diplomats--Poland--Correspondence.
Jerzy, z Tyczyna, approximately 1510-1586.
Kromer, Marcin, 1512-1589.
Poland--Foreign relations--Catholic Church
Poland--Foreign relations--Catholic Church--Sources.
Princeton subject headings:
Catholic Church--Foreign relations--Poland--Sources.
Diplomats--Poland--Correspondence.
Jerzy, z Tyczyna, approximately 1510-1586.
Kromer, Marcin, 1512-1589.
Poland--Foreign relations--Catholic Church--Sources.