https://www.hannover.de/en/en/view/content/351178/full/1/10031461999-03-02T00:00:00+01:00Max Mustermannmax@mustermann.dehttps://www.hannover.de/en/en/view/content/351178/full/1/10031461999-03-02T00:00:00+01:00The authentically preserved summer residence of the Guelphs, the oldest princely house in Europe, is one of the most important neo-Gothic monuments in Germany. Due to extensive renovation work, Marienburg Castle can only be viewed from the outside until further notice.