Rosenlew intended the manor to serve as his hunting lodge for the Finnish political and economic elite.
[1] The history of Vanajanlinna Manor dates back to 1918 when Carl Wilhelm Rosenlew purchased the Äikäälä estate and other surrounding farms.
It embodies baroque and Renaissance architecture with English influences due to Rosenlew and Frosterus being Anglophiles.
The manor's interior design exuded modernity and luxury, with bathrooms crafted from Italian marble, a Turkish bath, and the first heated indoor swimming pool in Finland.
[1] The Great Depression and World War II influenced Rosenlew's financial situation, leading him to sell the manor in 1941.