Tavastia (historical province)
Tavastia (; ; ; Old Russian Ямь or Емь) is a historical province in the south of Finland. It borders Finland Proper, Satakunta, Ostrobothnia, Savonia and Uusimaa. Administration From 1997 to 2010 Tavastia was divided between the administrative provinces of Southern Finland and Western Finland. However, these provinces have been abolished, and Tavastia is now divided among five regions of Finland: mainly Tavastia Proper (Kanta-Häme), Päijänne Tavastia and Central Finland with smaller parts in Pirkanmaa and Kymenlaakso. Tavastia is the Latin name for the Tavastia Proper. Today the area is called Häme region and it is located in the southwestern section of the historical Tavastia province. History The prehistoric era of Tavastia can be said to end with the Second Swedish Crusade in 1239 or 1249, when it became part of Sweden. The construction of the Häme castle began in the 1260s, on the orders of Birger Jarl. It was to be the centre of the three "castle counties", the other two being the castle of Turku () in Finland Proper and Viipuri () castle in Karelia. After the peace Treaty of Nöteborg in 1323 the castle lost some of its importance as a defence against the East but remained