Sophrony of Essex (born Sergei Symeonovich Sakharov, 22 September 1896, in Moscow) was a Russian-born monastic of the twentieth century, the disciple and biographer of St Silouan the Athonite, and the founder of the Monastery of St John the Baptist at Tolleshunt Knights in Essex, England. Trained as a painter in his youth, he is best known for his writings on prayer and the vision of God, which had a wide influence on modern Orthodox spirituality. He was glorified by the Ecumenical Patriarchate of Constantinople in 2019.
Born into a large Orthodox family, the future monk studied art at the Academy of Arts and the Moscow School of Painting, Sculpture and Architecture before leaving Russia after the Revolution. Settling in Paris in 1922, he pursued a career as a painter and exhibited at the Salon d'Automne (1923) and the Salon des Tuileries (1924). According to the accounts of his life, a period of experimentation with Eastern mysticism and a growing disillusionment with art gave way to a return to Orthodoxy around 1924, after which he briefly attended the St Sergius Orthodox Theological Institute before departing in 1925.
He came to Mount Athos and entered the Russian Monastery of St Panteleimon, where he was tonsured Sophrony and ordained deacon in 1930. There he became a disciple of St Silouan the Athonite, whom his biographers describe as the decisive and lifelong influence on his spiritual life. After Silouan's death in 1938 he withdrew into the Athonite desert, living for a time as a hermit at Karoulia, and was ordained priest in 1941. He later returned to France to publish and circulate Silouan's writings.
In 1959 he founded the Community of St John the Baptist at Tolleshunt Knights, Essex, a monastery housing both monks and nuns. It came under the jurisdiction of the Ecumenical Patriarchate in 1965 and was subsequently elevated to stavropegic status. Sophrony reposed there on 11 July 1993. On 27 November 2019 the Ecumenical Patriarchate entered him among the saints, appointing his feast day on the day of his repose, 11 July.