Schloss Rothenhof (also spelled Rottenhof) is a historic castle in the municipality of Hofamt Priel, located in the border region of the Nibelungengau between the Wachau, Waldviertel, and Strudengau regions of Lower Austria. First documented in writing during the 14th century, the castle originated as a ducal fief granted in 1395 under the name "Rothhof zu Persenbeug." The three-story main building features a distinctive hook-shaped floor plan with a two-story farm building and small bell tower. The municipality's coat of arms is derived from one of the castle's early owners, connecting Rothenhof to local heritage.