Duchy of Eastern Pomerania

Duchy of Eastern Pomerania
Księstwo wschodniopomorskie (Polish)
Ducatus Pomeraniae Orientalis (Latin)
11th century – 1046/1048
c. 1060 – 1227
1270–1308
Coat of arms of Eastern Pomerania
Coat of arms
Kingdom of Poland between 1304 and 1333, including Duchy of Pomerelia.
Kingdom of Poland between 1304 and 1333, including Duchy of Pomerelia.
StatusIndependent state (11th century – 1046/1048, c. 1060 – 1119, 1270–1294)
Fiefdom of Kingdom of Poland (1119–1210, 1211–1223, 1294–1308)
Fiefdom of Denmark (1210–1211)
CapitalGdańsk
Official languagesPolish, Latin
Religion
Roman Catholic
GovernmentDuchy
Duke 
• 11th century (first)
Siemomysł
• 1306–1308 (last)
Władysław I Łokietek
Historical eraHigh Middle Ages
• Partition of the Kingdom of Poland
11th century
• Incorporation into the Duchy of Poland
1046/1048
• Partition from the Duchy of Poland
c. 1060
• Becoming a fiefdom of the Duchy of Poland
1119
• Becoming a fiefdom of the Denmark
1210
• Becoming a fiefdom of the Duchy of Poland
1211
• Independence and partition into Duchy of Gdańsk and the Duchy of Świecie and Lubiszewo
1227
• Unification of the duchies of Gdańsk and Świecie
1270
• Becoming a fiefdom of the Duchy of Greater Poland
1294
• Conquest by the State of the Teutonic Order
1308
Preceded by
Succeeded by
Kingdom of Poland
Duchy of Poland
Duchy of Gdańsk
Duchy of Świecie
Duchy of Poland
Duchy of Gdańsk
Duchy of Świecie and Lubiszewo
Margraviate of Brandenburg
State of the Teutonic Order

The Duchy of Eastern Pomerania,[a] was a duchy centred on Pomerelia, with Gdańsk as its capital.

The duchy was formed after gaining independence from the Kingdom of Poland in the 11th century, following the death of Bolesław I the Brave in 1025. The duchy was then integrated back into Poland in 1046 or 1048 by Casimir I the Restorer, and its land remained under Polish rule until around 1060, when the duchy was restored.[1] In 1119, the duchy was again conquered by Poland and became its fiefdom, being ruled by stewards under the rule of the King of Poland. In 1210, it briefly became a fiefdom of Denmark under the rule of Valdemar II, until it was reconquered the next year by the king of Poland, Leszek the White. In 1227, the duchy gained independence from Poland, whereupon it was divided into the Duchy of Gdańsk and the Duchy of Świecie and Lubiszewo. Pomerelia united again in 1270 from the duchies of Gdańsk and Świecie, remaining independent until 1294, when Przemysł II, king of Poland, became its duke, making it again dependent on Poland. In 1308, the city of Gdańsk was occupied by the Margraviate of Brandenburg. After this event, the whole duchy was conquered by the State of the Teutonic Order.


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  1. ^ "Bolesław II Śmiały". polskiedzieje.pl.