Editing Riksdag of the Estates (section)

== Important assemblies ==
[[Image:Riddarhuset november 2010.jpg|thumb|upright=1.2|The [[Swedish House of Nobility|House of Nobility]], seat of the [[Swedish nobility]].]]

The meeting at [[Arboga]] in 1435 is usually considered to be the first Riksdag, but there is no indication that the fourth estate, the farmers, were represented there.{{Citation needed|date=July 2010}}

* The actual first meeting is likely the one that took place at [[Uppsala]] in 1436 after the death of the rebel leader [[Engelbrekt Engelbrektsson|Engelbrekt]].
* At the Riksdag in 1517, regent [[Sten Sture the Younger]] and the [[Privy Council of Sweden|Privy Council]] deposed [[archbishop]] [[Gustav Trolle]].
* At [[Västerås]] in 1527 [[Lutheranism]] was adopted as the new state religion instead of [[Roman Catholicism|Catholicism]].
* At Västerås in 1544, an order of royal succession was adopted, abolishing [[elective monarchy]] in Sweden.
* At [[Arboga]] in 1561, the term ''Riksdag'' was used for the first time.<ref>{{cite book |last=Eriksson |first=Bo |title=Lützen 1632: ett ödesdigert beslut |edition=New |year=2007 |publisher=Norstedt |location=Stockholm |language=Swedish |isbn=9789172637900 |id={{LIBRIS|10478413}} |page=47}}</ref>
* At [[Söderköping]] in 1595, [[Charles IX of Sweden|duke Charles]] was elected regent of Sweden instead of king [[Sigismund III Vasa|Sigismund]], who was a [[Roman Catholic Church|Catholic]] and the king of both Sweden and [[Polish–Lithuanian Commonwealth|Poland]].
* In 1612 the Riksdag gave the nobility the privilege and right to hold all higher offices of government, after successful lobbying by the [[Lord High Chancellor of Sweden]] [[Axel Oxenstierna]] as a reward to this estate in return for their pledge to loyally support the King ([[Gustavus Adolphus of Sweden|Gustavus Adolphus]]).  
* The first open conflict between the different estates happened in 1650, when the three lower estates attacked the nobility's privileges. Queen [[Christina, Queen of Sweden|Christina]] used the conflict to overcome opposition to her having named her cousin [[Charles X Gustav of Sweden|Charles Gustav]] as her heir. When she abdicated in 1654, he succeeded her as Charles X Gustav.
* At the Riksdag in 1680 a large scale [[reduction (Sweden)|reduction]] (a return of lands to the Crown earlier granted to the nobility) was enacted, and Sweden became an [[absolute monarchy]]. The King's absolute power was confirmed when the Riksdag of the Estates in 1693 officially proclaimed that the king was the sole ruler of Sweden.
* In 1719, the Riksdag elected [[Ulrika Eleonora of Sweden|Ulrika Eleonora]] as heir in place of her older sister's son, and Ulrika Eleonora accepted a new constitution restoring the powers of the Riksdag.
* In 1771–1772, when [[Gustav III]] after his [[Revolution of 1772]] introduced a new [[Instrument of Government (1772)|Instrument of Government]].
* In 1789, the Riksdag accepted an addition to the instrument of government from 1772. This new law, the [[Union and Security Act]], abolished most noble privileges and commoners, regardless of rank, could hold virtually any office Sweden.
* In 1809, the Riksdag elected [[Charles XIII of Sweden|Charles XIII]] king after his nephew [[Gustav IV Adolf of Sweden|Gustav IV Adolf]] had been deposed, and after the new king had accepted a new [[Constitution of Sweden|constitution]] that ended Sweden's second Autocracy (1789–1809).
* At the sessions in 1634, 1719, 1720, 1772 and 1809 new constitutions were adopted.