Our Lady of Kazan
The monastery started with the Church of Our Lady of Kazan ("Kazanskaya"), built in 1773–1780. Saint Seraphim blessed the construction of two churches adjoined to Kazanskaya: The Church of the Nativity of Christ (1829) and the Church of the Nativity of Theotokos (1830). The large Trinity Cathedral with its bell tower was constructed in 1865–1875.