Noble family House of Griffins Mother Elizabeth of Poland | Name Casimir Duke | |
 | ||
Father Bogislaw V, Duke of Pomerania Died January 2, 1377, Bydgoszcz, Poland Spouse Margaret of Masovia (m. 1369) Parents Bogislaw V, Duke of Pomerania, Elizabeth of Poland, Duchess of Pomerania Grandparents Casimir III the Great, Aldona of Lithuania, Wartislaw IV, Duke of Pomerania Great-grandparents Wladyslaw I the Elbow-high, Gediminas, Hedwig of Kalisz, Bogislaw IV, Duke of Pomerania, Jewna Similar People Casimir III the Great, Elizabeth of Pomerania, Aldona of Lithuania | ||
Casimir IV (Polish: Kazimierz IV or Kaźko Słupski, German: Kasimir IV or Kasimir V ) (1351 – January 2, 1377) was a duke of Pomerania in Pomerania-Stolp since 1374.
Life
Casimir was the son of Bogislaw V, Duke of Pomerania and Elizabeth of Poland. His maternal grandfather Casimir III the Great, the last king of Poland from the Piast dynasty, had no sons and brought him up at his court. After his grandfather's death in 1370, young Casimir initially became his partial successor, as the last will gave him lands of Dobrzyń, Bydgoszcz, Kruszwica, Złotów and Wałcz as fiefs. Yet, his ambitions were soon thwarted by Louis I of Hungary, who became the next king of Poland on the grounds of earlier pacts, and nullified the Piast's last will. Duke Casimir only held the land of Dobrzyń as a temporary fief.
In 1360, Casimir married his first wife Kenna of Lithuania. She was the daughter of Algirdas and Uliana Alexandrovna of Tver, raised in the Eastern Orthodox faith. With her marriage, she joined the Roman Catholic Church and was baptised again under the name "Johanna". She died on 27 April 1368, leaving no children.
After a year, Casimir IV married his second wife Margaret of Masovia. She was the daughter of Siemowit III of Masovia and his first wife Euphemia of Opava. They had no children. After the death of Casimir, she married Henry VII, Duke of Lubin and Brzeg.
Although after the death of his grandfather Bogislaw V in 1374 Casimir IV stayed several times in Pomerania-Stolp, most of the time he spent in Bydgoszcz; with his death in 1377 his fiefs fell back to Poland.