In spring 1231 Teutonic Knights crossed river Vistula at the height of Nessau and established a fortress. On 28 December 1233, the Teutonic Knights Hermann von Salza and Hermann Balk signed the foundation charters for Thorn and Che³mno. The original document was lost in 1244. The set of rights in general is known as Kulm law. In 1236, due to frequent flooding, it was relocated to the present site of the Old Town.
Torun castle was destroyed in 1454 during the Toruñ"s burgher uprising against the Teutonic Knights what in succession caused the 13-years Polish-Teutonic War ended by signing famous Second Toruñ Treaty in 1466. It was only 1966 when the ruins was explored and prepared for tourists.
References:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.