The memory of St. Sergius of Radonezh is celebrated several times a year: on July 18 - the remembrance of the acquisition of his honest relics (1422), on October 8 - his death (1392).
On July 18, 2022, Orthodox believers celebrate 600 years since the discovery of the relics of St. Sergius of Radonezh.
This saint is loved and revered by Orthodox Christians for his meekness, asceticism and unshakable desire to serve God. We know from the life of the saint that he was born into the family of pious boyars Cyril and Maria in 1314. In the world, St. Sergius bore the name Bartholomew.
Source: http://www.pravoslavie.ru/1442.html