Herrenchiemsee is a complex of royal buildings on the Herreninsel, an island in the Chiemsee, Bavaria's largest lake. The Augustine Monastery Herrenchiemsee, later converted into the Old Palace (Altes Schloss), and Herrenchiemsee Palace, also known as the New Palace (Neues Schloss), are the most famous of these buildings and the largest of King Ludwig II of Bavaria's palaces.