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Concept
Duchy of Pomerania
Summary
The Duchy of Pomerania (Herzogtum Pommern; Księstwo pomorskie; Latin: Ducatus Pomeraniae) was a duchy in Pomerania on the southern coast of the Baltic Sea, ruled by dukes of the House of Pomerania (Griffins). The country had existed in the Middle Ages, in years 1121–1160, 1264–1295, 1478–1531 and 1625–1637.
The duchy originated from the realm of Wartislaw I, a Slavic Pomeranian duke, and was extended by the Lands of Schlawe and Stolp in 1317, the Principality of Rügen in 1325, and the Lauenburg and Bütow Land in 1455. During the High Middle Ages, it also comprised the northern Neumark and Uckermark areas as well as Circipania and Mecklenburg-Strelitz.
The Duchy of Pomerania was established as a vassal state of Poland in 1121, which it remained until the fragmentation of Poland after the death of Polish ruler Bolesław III Wrymouth in 1138. Afterwards the Dukes of Pomerania were independent, and later were vassals of the Duchy of Saxony from 1164 to 1181, of the Holy Roman Empire from 1181 to 1185, of Denmark from 1185 to 1227 and finally, from 1227 on, staying with the Holy Roman Empire (including periods of vassalage to the Margraves of Brandenburg).
Most of the time, the duchy was ruled by several Griffin dukes in common, resulting in various internal partitions. After the last Griffin duke had died during the Thirty Years' War in 1637, the duchy was partitioned between Brandenburg-Prussia and Sweden. The Kings of Sweden and the Margraves of Brandenburg, later Kings of Prussia, became members as Dukes of Pomerania in the List of Reichstag participants.
Pomerania during the High Middle Ages
In the 12th century, Poland, the Holy Roman Empire's Duchy of Saxony and Denmark variously conquered Pomerania, ending the tribal era.
House of Pomerania
The Stolp (Słupsk) and Schlawe (Sławno) areas (lands of (Länder) Schlawe-Stolp) were ruled by Ratibor I and his descendants (Ratiboriden branch of the Griffin House of Pomerania) until the Danish occupation and extinction of the Ratiboride branch in 1227.
Official source
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