Scholar of Church Law
Gromoglasov was born in 1869 in the village of Ermish' in Tambov Province, the son of a deacon serving a rural church. He passed through the Shatsk and Tambov theological seminaries and in 1893 completed a Candidate of Theology degree at the Moscow Theological Academy, where his thesis on the marriage of converts from the schism was singled out for an award.
His scholarly work centered on ecclesiastical law and the history of the Old Believer schism. He held a professorial stipend at the Moscow Academy's chair of canon law, lectured on Old Believer history at the Penza Theological Seminary, and served as a docent and later extraordinary professor at the Moscow Academy. In 1908 he defended a master's dissertation on the definitions of marriage in the Kormchaya, the Slavonic book of church law, and was awarded the Metropolitan Macarius Prize. From 1916 he also taught church law in the law faculty of Moscow University.
He took part in all three sessions of the Local Council of the Russian Orthodox Church of 1917–1918, the council that restored the Moscow patriarchate, where he sat on several departments, was elected to the Higher Church Council, and argued for lay participation and conciliar governance.
Priesthood and Persecution
Gromoglasov was ordained deacon and then priest in February 1922 at the Church of the Holy Martyr Antipas in Moscow, taking up pastoral ministry as the Soviet campaign against the Church intensified. According to the synaxarion, he was arrested in Moscow for opposing the regime's confiscation of Church property and was soon released.
Further arrests followed through the 1920s. In 1925 he was sentenced to three years of exile in Surgut, Siberia, and after his release he was forbidden to live in Moscow and relocated to Tver, where he served at the church of the Theotokos of the 'Unburnt Bush.'
He was arrested for the last time in late 1937, accused of belonging to a supposed counterrevolutionary organization. An NKVD troika sentenced him to death, and he was executed in Kalinin (Tver). The synaxarion records that he was arrested together with his fellow clergyman Saint Alexis Benemanskii, with whom he is numbered among the martyrs of Tver.
Glorification
Gromoglasov was canonized as a locally venerated saint of the Tver diocese in 1999. In August 2000 the Bishops' Council of the Russian Orthodox Church glorified him among the New Martyrs and Confessors of Russia for general veneration. He is commemorated on November 22.