Finland Proper (historical province)

Southwest Finland or Finland Proper (, , ), is a historical province in south western Finland, centred on the historic city of Turku (Swedish: Åbo) and the Turku Castle. It borders Satakunta, Tavastia and Uusimaa. It is also bounded by the Baltic sea facing Åland. There was also a modern region by the name Finland Proper. Finland Proper is not to be confused with Mainland Finland.