Lev was an Eastern Orthodox priest and archimandrite who lived from 1889 to 1937. Born Leonid Mikhailovich Egorov, he was the brother of Metropolitan Gurij. After studying at the Petrograd Theological Academy, he entered monastic life at the Alexander Nevsky Lavra. He became well known for his missionary work among the poor and for leading the Alexander Nevsky Brotherhood. Throughout his ministry, he faced repeated arrests and periods of exile by Soviet authorities due to his religious leadership and social activities.