Estonian Historical Archives

From the Wikipedia page

The Estonian Historical Archives (Estonian: Ajalooarhiiv) holds records relating to former institutions that existed on the territory of Estonia. Included in this archive are records relating to the Baltic-German nobility, church records, local government records and historically significant personal files and documents. The collection contains rare documents, vellums, engravings and a collection of historical maps. Website: http://www.eha.ee/english/english.htm