The monograph is dedicated to the Slavic manuscript BAR Ms. Slav. 636 from the Library of the Romanian Academy in Bucharest, compiled in the Principality of Moldavia in 1557 during the reign of the Moldavian ruler Alexandru Lăpuşneanu (1552-1561; 1564-1568) and under the Suceava Metropolitan Gregory II, written by the hand of Hierodeacon Hilarion,