Johann created two memorials to himself, a palace in Bankgasse in Vienna and a summer palace in Rossau.
Rossau, Saxony, a municipality in the district of Mittweida, Saxony, Germany
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Rossau, Saxony-Anhalt, a municipality in the district of Stendal, Saxony-Anhalt, Germany
Rossau is a municipality in the district of Mittelsachsen, in Saxony, Germany.