Pelișor Palace was built in 1899–1902 by order of King Carol I, as the residence for his nephew and heir, the future King Ferdinand (son of Carol's brother Leopold von Hohenzollern) and Ferdinand's consort Queen Marie.
In 2006, it was decided that the entire complex, including Pelișor, long a museum and tourist site, is the legal property of the King Michael I of Romania. The royal family was to assume legal possession of it and lease it to the Romanian state, so that it will remain in its current status. The main castle of Peleș is already under lease, but negotiations for other villas and chateaus are ongoing. King Michael I of Romania maintained that Pelișor would remain a private residence for the royal family.
Pelișor was designed by the Czech architect Karel Liman in the Art Nouveau style; the furniture and the interior decorations were designed mostly by the Viennese Bernhard Ludwig. There are several chambers, working cabinets, a chapel, and 'the golden room'. Queen Marie herself, an accomplished artist, made many of the artistic decisions about the design of the palace, and participated in its decoration, including as a painter. Queen Marie considered Art Nouveau a weapon against sterile historicism, creating a personal style combining Art-Nouveau elements with Byzantine and Celtic elements.
Pelișor Castle hosts today a museum.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.