Lantdag

The Diet of Finland (Finnish Suomen maapäivät, later valtiopäivät; Swedish Finlands Lantdagar), was the legislative assembly of the Grand Duchy of Finland from 1809 to 1906 and the recipient of the powers of the Swedish Riksdag of the Estates. The term valtiopäivät today means an annual session of the Parliament of Finland, the Swedish Riksdagen being the name for both the Parliament and its sessions.

The first States of Finland were held in Helsinki in 1616. Other assemblies (Åbo lantdag) where held in Turku for example in 1676. The assembly was called together by Axel Julius De la Gardie. The estate of peasants was chaired by Heikki Heikinpoika Vaanila.

During the Finnish War between Sweden and Russia, the four Estates of occupied Finland (Nobility, Clergy, Bourgeoisie and Peasants) were assembled at Porvoo (Borgå) by Tsar Alexander I, the new Grand Duke of Finland, between March 25 and July 19, 1809. The central event at Porvoo was the sovereign pledge and the oaths of the Estates in Porvoo Cathedral on March 29. Each of the Estates swore their oaths of allegiance, committing themselves to accepting the Emperor and Grand Duke of Finland as the true authority, and to keeping the constitution and the form of government unchanged. Alexander I subsequently promised to govern Finland in accordance with its laws. This was thought to essentially mean that the emperor confirmed the Swedish Instrument of Government from 1772 as the constitution of Finland, although it was also interpreted to mean respecting the existing codes and statutes. The diet had required that it would be convened again after the Finnish War, which separated Finland from Sweden, had been concluded. On September 17 of the same year, the conflict was settled by the Treaty of Fredrikshamn, but it would be another five decades until the Finnish Estates would be called again.

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