In 1115, King Niels created his nephew Canute Lavard – a son of his predecessor Eric I – Earl of Schleswig, a title used for only a short time before the recipient began to style himself Duke. 
Eric I Abelsøn (died 27 May 1272) was a Danish nobleman. He was the ruling Duke of Schleswig from 1260 until his death in 1272. He was the second son of King Abel of Denmark, Duke of Schleswig and Mechtild of Holstein.
The Duchy of Schleswig (Danish: Hertugdømmet Slesvig; German: Herzogtum Schleswig; Low German: Hartogdom Sleswig; North Frisian: Härtochduum Slaswik) was a duchy in Southern Jutland (Sønderjylland) covering the area between about 60 km (35 miles) north and 70 km (45 miles) south of the current border between Germany and Denmark. The territory has been divided between the two countries since ...
A duchy is a country, territory, fief, or domain ruled by a duke or duchess. New!!: Duchy of Schleswig and Duchy · See more » Duke. A duke (male) or duchess (female) can either be a monarch ruling over a duchy or a member of royalty or nobility, historically of highest rank below the monarch. New!!: Duchy of Schleswig and Duke · See more »
Eric II Valdemarsøn was from 1312 until his death in 1325.
On the death of King Valdemar's descendant Eric VI of Denmark in 1319, Christopher II of Denmark attempted to seize the Duchy of Schleswig, the heir of which Duke Valdemar V (as of 1325) was a minor; but Valdemar's guardian and uncle, Gerhard III, Count of Holstein-Rendsburg (1304–1340), surnamed the Great and a notable warrior, drove back ...
In 1115, king Niels created his nephew Canute Lavard - a son of his predecessor Eric I - Earl of Schleswig, a title used for only a short time before the recipient began to style himself Duke.  In 1230s, Southern Jutland (Duchy of Slesvig) was allotted as an appanage to Abel Valdemarsen , Canute's great-grandson, a younger son of Valdemar II ...
Eric had only been king for about a year when he first came into conflict with his brother, Duke Abel of Schleswig, in 1242. The conflict lasted for two years before the brothers agreed on a truce in 1244 and made plans for a joint crusade to Estonia.
In 1115, king Niels created his nephew Canute Lavard - a son of his predecessor Eric I - Earl of Schleswig, a title used for only a short time before the recipient began to style himself Duke. In 1230s, Southern Jutland (Duchy of Slesvig) was allotted as an appanage to Abel Valdemarsen, Canute's great-grandson, a younger son of Valdemar II of ...
- Dukes of The Slavic Pomeranian Tribes
- Duchy of Pomerania
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- Duchy of Pomerelia
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The lands of Pomerania were firstly ruled by local tribes, who settled in Pomerania around the 10th and 11th centuries.
The Duchy resulted from the partition of Świętobor, Duke of Pomerania, in which his son Wartislaw inherited the lands that would become in fact known as Pomerania.
1168–1325 feudal fief of Denmark under local rulers: 1. 1162–1170 Tezlaw 2. 1170–1217 Jaromar I 3. 1218–1249 Wizlaw I 4. 1249–1260 Jaromar II 5. 1260–1302 Wizlaw II 6. 1303–1325 Wizlaw III From 1325 Pomerania-Wolgast or -Barth: 1. 1325–1326 Wartislaw IV 2. 1326–1368 Bogislaw V, Wartislaw V, Barnim IV 3. 1368–1372 Wartislaw VI, Bogislaw VI 4. 1372–1394 Wartislaw VI 5. 1394–1415 Wartislaw VIII 6. 1415–1432/36 Swantibor II 7. 1432/36–1451 Barnim VIII 8. 1451–1457 Wartislaw IX 9. 1457–1478 Wartislaw X from 1474 part of Pomerania-Wolgast
In 1155, the lands who belonged to Świętopełk I became independent under Sobieslaw I, a possible descendant, who founded the House of Sambor and the Duchy of Pomerelia. The dukes of Pomerelia were using the Latin title dux Pomeraniae ("Duke of Pomerania") or dux Pomeranorum("Duke of the Pomeranians").Gerard Labuda (ed.), "Historia Pomorza", vol. 1–4, Poznan-Torun 1969–2003Edmund Kopicki, "Tabele dynastyczne", "Wykazy panujacych", in: "Katalog podstawowych monet i banknotow Polski oraz ziem z historycznie z Polska zwiazanych", vol. IX, part IZugmunt Boras, "Ksiazeta Pomorza Zachdniego", Poznań 1969, 1978, 1996Casimir Kozlowski, George Podralski, "Poczet Ksiazat Pomorza Zachdniego", KAW, Szczecin 1985