The aptly named “High Castle,” surrounded by formidable white walls and reached from the parish church below by a steep lane, was once the summer residence of the prince-bishops of Augsburg. While the coffered Rittersaal (Knight’s Hall) suggests pomp and ceremony, the courtyard frescoes, providing the illusion of many more gables and windows than are actually there, add a refreshingly light touch to the otherwise somber surroundings. The princely chambers house paintings and sculptures by 15th- and 16th-century Bavarian masters, including the Sippen Altar panels from 1510, showing eight chilling scenes of plague and war.