Ostrobothnia County

Ostrobothnia County
Österbottens län
Pohjanmaan lääni
County of the Swedish Empire
1634–1775
CapitalVaasa
History 
1634
• Disestablished
1775
Succeeded by
Vaasa Province
Oulu Province

Ostrobothnia County (Swedish: Österbottens län, Finnish: Pohjanmaan lääni) was a county of the Swedish Empire from 1634 to 1775.

The county was split in 1755 to County of Vasa (Swedish: Vasa län, Finnish: Vaasan lääni) and County of Uleåborg (Swedish: Uleåborg län, Finnish: Oulun lääni).

Maps

Provinces of Finland 1634: 1: Turku and Pori, 14: Nyland and Tavastehus, 18: Ostrobothnia, 20: Viborg and Nyslott, 21: Kexholm
Provinces of Finland 1776: 1: Turku and Pori, 4: Vaasa, 10: Oulu, 14: Nyland and Tavastehus, 15: Kymmenegård, 16: Savolax and Karelia

Governors

References

  1. ↑ Hofberg, Herman (1906). Svenskt biografiskt handlexicon: Alfabetiskt ordnade lefnadsteckningar af Sveriges namnkunniga män och qvinnor från reformationen till närvarande tid [Swedish biographical handlexicon: Alphabetically arranged biographies of Sweden's notable men and women from the Reformation to the present time] (in Swedish). Stockholm: A. Bonnier. p. 404. OCLC 3585433. OL 24588283M. Retrieved 15 August 2026.