Schloss Weißenstein is a Schloss or palatial residence in Pommersfelden, Bavaria, southern Germany. It was designed for Lothar Franz von Schönborn, Prince-Bishop of Bamberg and Archbishop of Mainz, to designs by Johann Dientzenhofer and Johann Lukas von Hildebrandt. Weißenstein, built as a private summer residence, remains in the Schönborn family. It is considered a masterwork of Baroque architecture.