Barnim III, Duke of Pomerania

Barnim III the Great (c. 1300 – 14 August 1368) was a Pomeranian duke from the House of Griffin.

Barnim III the Great, Duke of Pomerania
Barnim III's tomb, Pomeranian Dukes' Castle, Szczecin (Stettin)
Born	c. 1300
Died	14 August 1368
Noble family	House of Griffin
Spouse(s)	Agnes of Brunswick-Grubenhagen
Issue	Casimir III Swantibor III Bogislaw VII
Father	Otto I, Duke of Pomerania
Mother	Elisabeth of Holstein

He ruled Pomerania-Stettin in the years 1344–1368, although he had been a co-regent of his father Otto I since 1320, taking a prominent part in the defence and government of the duchy. Aiming for independence from the Margraviate of Brandenburg, he allied himself with Poland and Bohemia. In 1338, Brandenburg relinquished supremacy over Pomerania, and in 1348 Charles IV recognized the duchy as a fiefdom of the Holy Roman Empire, which helped to protect it from the Brandenburg margraves. The civil war in Brandenburg in the years 1349–1354 allowed Barnim III to extend his duchy by conquest.^[1] He was first dux Cassuborum Duke of Kashubians.

Barnim III married Agnes (c. 1318 – before or in 1371), a daughter of Duke Henry II of Brunswick-Grubenhagen. They had four children:

• Otto (d. 1337)
• Casimir III (1348 – 24 August 1372)
• Swantibor III (c. 1351 – 21 June 1413)
• Bogislaw VII (before 1366 – 1404)

• List of Pomeranian duchies and dukes
• History of Pomerania
• Duchy of Pomerania
• House of Pomerania

• Barnim III (in German)

Attribution:

• Chisholm, Hugh, ed. (1911). "Barnim s.v. Barnim III." . Encyclopædia Britannica. Vol. 3 (11th ed.). Cambridge University Press. pp. 415–416.
• "Barnim III Wielki". PWN.pl. Wydawnictwo Naukowe PWN.