Schwerin

Schwerin was an imperial county in the Mecklenburg lake district, centred on the former Obotrite stronghold of Schwerin. In 1337 Count Henry III of the House of Schwerin ruled the county.

Henry died in 1344; Otto I held the title until 1356. Under the 1368 Treaty of Plüschow, Schwerin was sold to Albert II of Mecklenburg for 20,000 silver marks. Its lands were incorporated into the Duchy of Mecklenburg in 1471.