The second Christianization of the area began at about 767 under Bishop Vergilius of Salzburg. His missionary Modestus had the first church of the Assumption of Mary built at Maria Saal/Gospa Sveta, across the plain from Krnski Grad/Karnburg, as the centre of his missionary activities. "S. Maria ad Carantanum" was first mentioned in an 860 deed, probably a smallish wooden church that has vanished long since. From this bishop's church - by no means a cathedral in the modern sense of the word - Christianity was spread all over Carantania.