Casimir II, Duke of Pomerania

Casimir II, Duke of Pomerania

Casimir II (also Kasimir II) (c. 1180-1219) was duke of Pomerania-Demmin. A son of Bogislaw I und Anastasia, daughter of the Polish duke Mieszko III, he was married to princess Ingardis of Denmark and succeeded by their son Wartislaw III.

After his father's death in 1187, Casimir received Pomerania-Demmin as his share of the duchy of Pomerania ("Slavia"), after his older brother Bogislaw II had received the other part duchy Pomerania-Stettin and his other older brother, Wartislaw II, who is assumed to have received Pomerania-Demmin from their uncle, Casimir I in the first place, had died in 1184.

As Casimir still was a minor in 1187, his mother Anastasia was ruling in his place until 1194 as well as, until 1189, the Swantiboride Stettin "castellan" Wartislaw ("Wartislaw Swantiboricz or Swantiboriz") and therafter the Rugian prince Jaromar I. Despite his predecessors having joined the Holy Roman Empire in 1181, Casimir and Bogislaw II had to yield the pressure put on Pomerania by Denmark, who already subdued the neighboring Rani princedom of Rügen, and eventually became vassals to Canute VI of Denmark.

The Danish influenced Casimir's reign not only by appointing Jaromar, their vassal and ally, to be his legal guardian, but also by determining the northern borders of Pomerania-Demmin that were disputed by Pomerania and Rügen, with Rügen claiming the Peene river and Pomerania claiming the Ryck river further north to be the border. The decision of Canut that had to be accepted by Anastasia favoured the Rugian demands, only the trans-Peene "terrae" Wolgast, Lassan and Ziethen were put under Pomeranian control with the larger part of the disputed area, including the "terrae" Lositz (Loitz) and Wostrose (Wusterhusen), remaining within Rügen. In 1198 and 1199, margrave Otto II of Brandenburg occupied Pomerania-Demmin in the course of a war between Brandenburg and Denmark, shifting Casimir's realm north close to the Ryck river. When Valdemar II of Denmark regained Pomerania in 1202, Casimir and Bogislaw II had to accept Danish overlordship again and turned to support Denmark in her war with Brandenburg. In 1216, the border between Rügen and Pomerania was settled again, pushing it back almost to where it were before the Brandenburgian occupation. As Rügen had founded the Hilda (now part of Greifswald district Eldena) abbey in 1199 at the southern bank of the Ryck river and had granted vast areas of the disputed areas to her, Casimir and Bogislaw confirmed these grants in 1218 by pointing out that these lands righteously had been theirs.

With his wife Ingardis von Dänemark († ~ 1236), to whom he was married in 1210, he had a son, Wartislaw III who would succeed him as duke of Pomerania-Demmin, and a daughter, Elisabeth.

See also

*Pomeranian duchies and dukes
*House of Pomerania
*History of Pomerania

Sources

*Allgemeine Deutsche Biographie|3|40|41|Bogislav I.|Gottfried von Bülow
*Allgemeine Deutsche Biographie|3|41|42|Bogislav II.|Häckermann
*Joachim Wächter: "Das Fürstentum Rügen - Ein Überblick". In: "Beiträge zur Geschichte Vorpommerns: die Demminer Kolloquien 1985–1994". Thomas Helms Verlag, Schwerin 1997, ISBN 3-931185-11-7.
*Martin Wehrmann: "Geschichte von Pommern". Band 1, Weltbild Verlag 1992, Reprint der Ausgaben von 1919 und 1921, ISBN 3-89350-112-6, Seite 91–95.


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