Upper Saxony
In 1389 the town finally was acquired by Landgrave Balthasar of Thuringia, a member of the House of Wettin. Saalfeld's economy prospered from surrounding mines, transport on the Saale River as well as from fishing (expressed by the barbels in the town's coat of arms). The Wettin rulers had the Gothic Saint John hall church erected at the site of a Romanesque predecessor building until 1514. The Gothic town hall was completed in 1537. The ruling dynasty reached its height of importance, when in 1423 all Wettin lands including the Thuringian estates were incorporated into the Electorate of Saxony (Upper Saxony).