The deprivation of the rights of Slavic clans and the seizure of land by the Mecklenburg territorial rulers around 1200 led to the start of a rivalry for power. Hanseatic cities, lower nobility and the clergy wrestled with the rulers for influence. The Reformation, Thirty Years‘ War (1618-1648) and the end of the Hanseatic League strengthened the landowning nobility. This led in 1523 to the Country Estates Union and was fixed in 1755 in the state inheritance agreement (“Landesgrundgesetzlicher Erbvergleich”).
This power relationship remained until 1918. Democracy in the free states of Mecklenburg-Schwerin and Mecklenburg-Strelitz lasted until 1933. Then an imperial governor ruled and united the two states. In 1945, after the occupation by the Red Army, the Socialist Unity Party of Germany (SED) assumed political rule until 1989. The peaceful revolution led to the creation in 1990 of the state of Mecklenburg-Western Pomerania and a democratically elected state parliament formed the governments.