The first mention of the Venerable Andronicus is found in the life of the Venerable Sergius of Radonezh, written around 1418. He was from the Rostov land and, as a youth, came to the Venerable Sergius, asking for monastic tonsure. Sergius, seeing his desire for silence, blessed him to live alone in a cell. The Venerable Andronicus, being quiet and humble, was strengthened in spiritual life under the guidance of Sergius.
After ten years of ascetic life, he contemplated founding his own monastery. The Venerable Sergius, knowing of his intention, blessed him for this endeavor. The place for the monastery was chosen four versts from the Kremlin, on the Yauza River, and in 1361 a church was built in honor of the Image Not Made by Hands of the Savior.
Andronicus became the first igumen of the monastery, which quickly grew and prospered in virtues. He was known for his humility and diligence in prayer. Many came to him for spiritual counsel, and the brotherhood increased.
The Venerable Andronicus departed to the Lord on June 13, 1395, leaving his flock under the guidance of the disciple of the Venerable Savva. His relics rest in the cathedral church of the Spaso-Andronikov Monastery.
The fame of the monastery and the spiritual feats of the Venerable Andronicus spread throughout Rus', and many aspired to monastic life. His disciples also became renowned igumens and bishops.
The memory of the Venerable Andronicus is celebrated on June 13/26 and in the Synaxis of the Radonezh Saints on July 6/19. The memory of the Venerable Andrei Rublev is commemorated on July 4/17.
