The Habsburgs, noble knightly families up to the last emperor of France - they all settled around Lake Constance and many of their descendants still live in palaces, castles and fortresses around the so-called "Swabian Sea". This documentary by offers a journey through historical noble houses in the four states of the Lake Constance region: Austria, Germany, Switzerland and the Principality of Liechtenstein. The film shows noble families and provides insights into their lives, images of fairytale palaces and castles as well as turbulent stories of great noble families from a historical perspective.