Ks. Mieczysław Olszewski,Blessed Michael Sopocko was a specialist in pastoral theology and a priest.
He acquired his pastoral knowledge at the seminary in Vilnius. His lecturer was
Rev. John Uszyllo, the graduate of the Roman Catholic Spiritual Academy at
St. Petersburg. The basic pastoral theology manual used in those days was M.
Schenkl’s Theologiae Pastoralis systema. The then books in the subject were
influenced by the Enlightenment and the policy of Emperor Joseph II.Archidiecezjalne Wyższe Seminarium Duchowne w Białymstok