The history of the original estate of Vanajanlinna, Äikäälä, goes back to the Middle Ages. Historical records mention Olle af Aeykaelum (Olli of Äikäälä) as the owner of the Äikäälä estate in 1374. After him the farm has had many owners and a colourful history as a freehold and holding farm used for agriculture.
The actual history of Vanajalinna begins from the year 1918, when the industrialist Carl Wilhelm Rosenlew bought the Äikäälä estate. His idea was to build a hunting lodge for politicians and economical elite of the new, independent Finland. The Vanajanlinna palace was designed by Sigurd Frosterus and it represents baroque, renaissance and British manor architecture styles. The massive red-brick palace was completed in 1924.
After the death of C. W. Rosenlew Vanajanlinna was left for minimal use and in 1941 Rosenlews decided to sell the estate. There were two interested buyers. Risto Ryti, the President of Finland, wanted Vanajanlinna as the President´s summer residence instead of the present official summer residence Kultaranta in Naantali. The other interested was an immensely rich German munitions industrialist Willy Daugs. Despite Risto Ryti´s strong opposition, Vanajanlinna was sold to Daugs, who then moved to the house.
After Germany was defeated in the war, all German property in Finland was transferred to the Soviet Union as war reparations, including Vanajanlinna. The Russian embassy used Vanajanlinna for holiday residence few times, but the main building began to decay. In 1956 Yrjö Sirola Institute acquired the estate and moved it as the folk high school. After the acquisition over a half of the land was conveyed to veterans to build small farms and dwelling houses. The Sirola Institute was shut down in 1994 and in 1996 the buildings and land of Vanajanlinna were acquired by the City of Hämeenlinna.
Today Vanajanlinna provides hotel, restaurant, conference and event services. There is also a high class golf course.
The Château de Chaumont was founded in the 10th century by Odo I, Count of Blois. The purpose was to protect his lands from attacks from his feudal rivals, Fulk Nerra, Count of Anjou. On his behalf the Norman Gelduin received it, improved it and held it as his own. His great-niece Denise de Fougère, having married Sulpice d'Amboise, passed the château into the Amboise family for five centuries.
Pierre d'Amboise unsuccessfully rebelled against King Louis XI and his property was confiscated, and the castle was dismantled on royal order in 1465. It was later rebuilt by Charles I d'Amboise from 1465–1475 and then finished by his son, Charles II d'Amboise de Chaumont from 1498–1510, with help from his uncle, Cardinal Georges d'Amboise; some Renaissance features were to be seen in buildings that retained their overall medieval appearance. The château was acquired by Catherine de Medici in 1550. There she entertained numerous astrologers, among them Nostradamus. When her husband, Henry II, died in 1559 she forced his mistress, Diane de Poitiers, to exchange Château de Chaumont for Château de Chenonceau which Henry had given to de Poitiers. Diane de Poitiers only lived at Chaumont for a short while.
Later Chaumont has changed hands several times. Paul de Beauvilliers bought the château in 1699, modernized some of its interiors and decorated it with sufficient grandeur to house the duc d'Anjou on his way to become king of Spain in 1700. Monsieur Bertin demolished the north wing to open the house towards the river view in the modern fashion.
In 1750, Jacques-Donatien Le Ray purchased the castle as a country home where he established a glassmaking and pottery factory. He was considered the French "Father of the American Revolution" because he loved America. However, in 1789, the new French Revolutionary Government seized Le Ray's assets, including his beloved Château de Chaumont.
The castle has been classified as a Monument historique since 1840 by the French Ministry of Culture. The Château de Chaumont is currently a museum and every year hosts a Garden Festival from April to October where contemporary garden designers display their work in an English-style garden.