Around 1300, Rosendael Castle came into the hands of the counts and later dukes of Gelre. Of the 20 castles in the dukedom, Rosendael was the favourite of many dukes, because of its beautiful location on the edge of the Veluwe moraine.
The large medieval complex contained a forecourt, a main fortress and a substantial donjon. Only the round donjon has survived the ravages of time. It has walls of up to 4 metres thick and was the last refuge in the event of siege for the duke and his family. Although it is the highest tower of its kind in the Netherlands, it was originally twice as high.
The ducal family resided regularly at the castle until the 16th century. But then the tide turned. In 1502, Philip the Handsome captured the city of Arnhem. Duke Charles of Gelre was humiliated in his own castle of Rosendael by Philip. Charles was forced to make peace and was exiled from Gelre. The incident became known as 'the prostration of Rosendael'.
When Philip died in 1506, Charles managed to regain the dukedom of Gelre at great financial expense. As a result, in 1516 he was forced to mortgage his beloved castle and even to sell it 20 years later. He died a few years afterwards and the dukedom soon lost its independence. Rosendael Castle came into the hands of various noble families, who occupied it for almost 400 years.
In 1722 a square house was built abutting the big tower. The side wing and coach house were built a century later. Beautiful gardens were laid out around these, and the famous French landscape gardener Daniel Marot designed the shell gallery, the trick fountains and the tea pavilion, all of which have been preserved. They give the austere medieval castle the character of a peaceful country house.
During the war, Rosendael was hit hard a number of times. It ceased to be a private residence in 1977 when Baron van Pallandt died. The castle was fully restored in the nineteen-eighties and opened to the public.References:
The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.