Relics and Veneration
The center of Procopius's veneration is the parish church of the Entry of the Theotokos in Ustya, within the Vologda diocese, where his incorrupt relics were discovered in the eighteenth century. The sources relate that the relics remained on open display for about two hundred years and were regarded as a source of many miraculous healings, which drew growing veneration to the saint.
Church authorities are recorded as having examined the relics on more than one occasion in the seventeenth and eighteenth centuries before a chapel was dedicated to Procopius and a service was composed for his commemoration. The general celebration of his feast was established in 1818.