Nyland and Tavastehus County

Nyland and Tavastehus County
Nylands och Tavastehus län
Uudenmaan ja Hämeen lääni
County of the Swedish Empire 1634–1809
Province of Grand Duchy of Finland 1809–1831
1634–1831
CapitalTavastehus
History 
1634
• Disestablished
1831
Succeeded by
Uusimaa Province
Häme Province
1 Finnish: Häme

Nyland and Tavastehus County, or Uusimaa and Häme Province, was a county of the Swedish Empire from 1634 to 1809, and a county of Grand Duchy of Finland from 1809 to 1831.

In 1775 whole northern part of the county (later Central Finland region) was transferred to the new Vasa County. Also a part of historical Satakunta was added to the Nyland and Tavastehus County from the Åbo and Björneborg County, while Upper Hollola was transferred to the new Kymmenegård County.

By the Treaty of Fredrikshamn in 1809 Sweden ceded all its territories in Finland, east of the Torne River, to Russia. The county still continued to exist as a province of the new autonomous Grand Duchy of Finland until 1831, when it was split to Tavastehus County (Häme Province) and Nyland County (Uusimaa Province).