Seraphim of Sarov
As a priest, Fr. Chichagov made several pilgrimages to Serafimo-Diveevsky Monastery and the Sarov monastery in Sarov. During these visits he wrote a history of the Sarov monastery and a biography of the monk Seraphim of Sarov based on interviews with nuns who had known the saint. This work would later contribute to the canonization of St. Seraphim in 1903. His extensive history of the Diveevsky monastery was published in 1896. Natalia Chichagov was buried at the Diveevsky monastery, alongside an empty grave intended for Fr. Chichagov.