Fort Louvois was built between 1691 and 1694, during the reign of Louis XIV, on the Chapus islet, and is about 400 metres offshore in the town of Bourcefranc-le-Chapus in the department of Charente-Maritime. The fort sits opposite the citadel of Château d'Oléron on the island of Oléron. The fort was positioned so that a crossfire from the château and the fort would control the Pertuis de Maumusson (Passage of Maumusson) and impede access to the Rochefort roads from the south.
In 1755 Fort Louvois saw modifications that were intended to keep pace with advances in weaponry. One result was the reduction in the number of embrasures for artillery to ten from the original 16. The battery lost its roof, and the fort also received latrines on the walls. These were the last modifications to the fort.
In 1824 the fort was armed with four 24-pounder guns and three 32-pounder mortars. Then in 1870 it received six 22-pounder howitzers. The fort was repaired in 1875 to undo damage from the action of the sea. At that time it received a telegraph station and six 16-pounder guns.
After the First World War, the French military abandoned the fort. Fort Louvois only saw action towards the end of World War II when bombardment greatly damaged the fort, necessitating later restoration.
Since 1972 the fort has been the site of a museum of oyster farming, and there are oyster beds next to the causeway that joins the fort to the shore. The fort also houses a permanent exhibition that describes the history of the fort and that contains models of fortifications on the Charente coast. During the summer a shuttle boat that operates during high tide takes visitors to the fort; at low tide the fort is accessible via a causeway.
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.