Thereafter he rose rapidly as singer, actor, and harpsichordist; he went to Breslau in 1772 (with the Wäser theatre company), Königsberg in 1773, Heilsberg in 1774 (as court harpsichordist to the Bishop of Ermeland), Danzig in 1775, Königsberg again in 1776 (with the Schuch company) and later appeared in Gotha (at the court theatre).
Sterzinsky was born in Warlack (earlier also Wurlacken, Warlaucken, now Worławki, Olsztyn County), Landkreis Heilsberg, in German East Prussia.
The town was methodical founded by the Teutonic knights commander of Balga, Heinrich von Muro, on February 5, 1335 at the crossing of the streets Balga - Heilsberg and Bartenstein - Mehlsack in the heart of the Old Prussian region of Natangia.
When Ferber suffered another stroke in 1537, Copernicus was immediately sent to Heilsberg, but he arrived after Ferber's death on 1 July.
Bischop Giese died in Heilsberg (Lidzbark) and was laid to rest next to Copernicus at the Frauenburg (Frombork) cathedral.