1 Thaler - Sebastian of Rostock

Sebastian von Rostock served as Prince-Bishop of Breslau from 1664 until his death in 1671, a tenure consumed almost entirely by the grinding aftermath of the Thirty Years' War and the diocese's fraught relationship with the Habsburg court over the pace of re-Catholicization in Silesia. The Bishopric retained the right to strike thalers as a sovereign ecclesiastical territory under the Empire, and Sebastian exercised that right sparingly — making individual dated issues from his episcopate genuinely scarce rather than artificially so.

Davenport EC II#5120 is the standard reference, with Kopicki confirming the type.