Kazimierz III of Gniewkowo

Kazimierz III of Gniewkowo (ca. 1280/84 – 22 August 1345/13 May 1350), was a Polish prince member of the House of Piast, Duke of Inowrocław during 1287-1314 (under the regency of his mother until 1294 and his brother during 1294-1296), since 1306 vassal of the Kingdom of Poland, Governor of the Duchy of Pomerelia (Gdańsk Pomerania) during 1306-1309 (on behalf of his uncle Władysław I the Elbow-high), after 1314 ruler over Gniewkowo (between 1332-1343 deposed by the Teutonic Order). He was the third and youngest son of Ziemomysł of Inowrocław and , daughter of Sambor II, Duke of Pomerelia.

Kazimierz III of Gniewkowo

Kazimierz III of Gniewkowo (ca. 1280/84 – 22 August 1345/13 May 1350), was a Polish prince member of the House of Piast, Duke of Inowrocław during 1287-1314 (under the regency of his mother until 1294 and his brother during 1294-1296), since 1306 vassal of the Kingdom of Poland, Governor of the Duchy of Pomerelia (Gdańsk Pomerania) during 1306-1309 (on behalf of his uncle Władysław I the Elbow-high), after 1314 ruler over Gniewkowo (between 1332-1343 deposed by the Teutonic Order). He was the third and youngest son of Ziemomysł of Inowrocław and , daughter of Sambor II, Duke of Pomerelia.