Gräfsnäs Castle today consists of a heavily restored main building with barred windows and surrounding dry moat. The ruins are remnants of the original palatial fortress built in Swedish-French Renaissance style. The castle, which met with such a tragic fate, was constructed in c. 1571 and belonged to many different owners (like Leijonhufvud, Sparre and Holstein-Augustenburg families) before it was finally abandoned in the late 19th century. The tragic coincidence was that Gräfsnäs was damaged by fire in every one hundred years (1634, 1734 and 1834).
References:The Château de Chantilly comprises two attached buildings: the Petit Château built around 1560 for Anne de Montmorency, and the Grand Château, which was destroyed during the French Revolution and rebuilt in the 1870s. Owned by the Institut de France, the château houses the Musée Condé. It is one of the finest art galleries in France and is open to the public.
The estate"s connection with the Montmorency family began in 1484. The first mansion (now replaced by the Grand Château) was built in 1528–1531 for the Constable Anne de Montmorency by Pierre Chambiges. The Petit Château was also built for him, around 1560, probably by Jean Bullant. In 1632, after the death of Henri II, it passed to the Grand Condé who inherited it through his mother, Charlotte Marguerite de Montmorency.
Several interesting pieces of history are associated with the château during the 17th century.