Diaries, correspondence, and speeches and writings, relating to the Russian Orthodox Church and to Russian émigré affairs.
Andrei Vasil’evich Koshevoi was born in Valok, Russia, in the Poltava guberniia, on October 16, 1874. He grew up in a pious
Russian Orthodox family, went through the traditional theological education, graduating from the Romenskoe dukhovnoe uchilishche
in 1888 and the Poltavskaia dukhovnaia seminariia in 1894. Early on, Koshevoi chose his path, and in 1898 he was tonsured
a monk by his spiritual mentor Archbishop Antonii (Khrapovitskii), given the name Apollinarii, and subsequently ordained.
He then continued his education at the famous Kievskaia dukhovnaia akademiia, graduating in 1905.