One of the outstanding Ukrainian masters of monumental painting of the late 14th – early 15th centuries, whose work is associated with the paintings of the Holy Trinity Chapel in Lublin Castle. Information about the master has been preserved thanks to the inscriptions on the walls of the chapel, which record his name and origin. Andriy’s activity coincided with the beginning of the period of active development of Ukrainian painting of the 15th-17th centuries. The paintings were executed by him and a group of painters in 1418 by order of the Polish king Władysław II Jagiellon. They combine elements of Byzantine iconography, contemporary Ukrainian painting and Central European Gothic.