The oldest parts of the Norantola Castle were probably built in the 12th century for a local noble family. In 1248 Locarnus de Norantola is mentioned in a record and in 1295 Petrus de Norantola is mentioned. However, by around 1300 the castle was owned by the powerful Counts of Sax/Misox and the Norantola family vanished from historical records. In 1324 Ugolinus von Sax was listed as the owner of the castle. In the early 14th century, the original castle was completely rebuilt. The old ring wall was topped with swallowtailcrenallations. A new tower was built on the wall. The north wing, with apartments and a throne room, and a south wing with stables were added. The original palas had a gallery added and became the east wing.
The rulers of the castle became a cadet branch of the Sax/Misox family, known as Sax-Norantola. In 1439 the local court ruled in favor of the Sax-Norantola family during a family conflict. However, in 1452 Count Henri von Sax-Misox signed an agreement with the residents of the valley that overturned all agreements and traditional rights between Sax-Norantola and the residents. In 1480 Count Peter von Sax and Gian Giacomo Trivulzio quarreled over Mesocco, which eventually led to a war. It appears that the Sax-Norantola family supported Trivulzio and his ally, the Duke of Milan. After 1480 either Trivulzio or the Duke of Milan helped reinforce that castle. However, it was ineffective because in 1483, during fighting between the Duke and the Count, Norantola Castle was burned by Sax-Misox troops. The castle was never rebuilt and in the 16th century the Sax-Norantola family lived in Bellinzona.References:
The famous Italian Medici family have given two queens to France: Catherine, the spouse of Henry II, and Marie, widow of Henry IV, who built the current Luxembourg palace. Maria di Medici had never been happy at the Louvre, still semi-medieval, where the fickle king, did not hesitate to receive his mistresses. The death of Henry IV, assassinated in 1610, left the way open for Marie's project. When she became regent, she was able to give special attention to the construction of an imposing modern residence that would be reminiscent of the Palazzo Pitti and the Boboli Gardens in Florence, where she grew up. The development of the 25-hectare park, which was to serve as a jewel-case for the palace, began immediately.
The architect, Salomon de Brosse, began the work in 1615. Only 16 years later was the palace was completed. Palace of Luxembourg affords a transition between the Renaissance and the Classical period.
In 1750, the Director of the King's Buildings installed in the wing the first public art-gallery in France, in which French and foreign canvases of the royal collections are shown. The Count of Provence and future Louis XVIII, who was living in Petit Luxembourg, had this gallery closed in 1780: leaving to emigrate, he fled from the palace in June 1791.
During the French Revolution the palace was first abandoned and then moved as a national prison. After that it was the seat of the French Directory, and in 1799, the home of the Sénat conservateur and the first residence of Napoleon Bonaparte, as First Consul of the French Republic. The old apartments of Maria di Medici were altered. The floor, which the 80 senators only occupied in 1804, was built in the middle of the present Conference Hall.
Beginning in 1835 the architect Alphonse de Gisors added a new garden wing parallel to the old corps de logis, replicating the look of the original 17th-century facade so precisely that it is difficult to distinguish at first glance the old from the new. The new senate chamber was located in what would have been the courtyard area in-between.
The new wing included a library (bibliothèque) with a cycle of paintings (1845–1847) by Eugène Delacroix. In the 1850s, at the request of Emperor Napoleon III, Gisors created the highly decorated Salle des Conférences, which influenced the nature of subsequent official interiors of the Second Empire, including those of the Palais Garnier.
During the German occupation of Paris (1940–1944), Hermann Göring took over the palace as the headquarters of the Luftwaffe in France, taking for himself a sumptuous suite of rooms to accommodate his visits to the French capital. Since 1958 the Luxembourg palace has been the seat of the French Senate of the Fifth Republic.