In 1547, when Electoral Saxon troops plundered and razed the weakly defended castle during the Schmalkaldic War, Henry's son, Wolf of Ende, sold the castle and Barony of Rochsburg for 60,000 guilders to the three lords, George, Hugo and Wolf II of Schönburg, who were thus able to further expand their considerable estates in the upper valley of the Zwickau Mulde. They not only rebuilt the ruined site a year later, but with its dormers and windows, gave it the appearance that it still has today. Even the damage by a subsequent fire in 1582, was quickly repaired by the Schönburgs; at that time almost all wooden ceilings were replaced in the form that is still visible today. In 1574 a two-storey maison de plaisance was built in front of the castle gates to a round plan. Today it is the last surviving example of this type of building in Saxony.