Barnim I, Duke of Pomerania
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Barnim I the Good (born c. 1217-1219, died December 13, 1278 in Altdamm) was a Pomeranian ruler from the Griffin dynasty. Son of Duke Bogislaw II, he succeeded to the Duchy of Pomerania-Stettin on his father's death in 1220; he shared the rule of Pomerania with his cousin Wartislaw III who resided in Demmin. In 1250 he became vassal of the margrave of Brandenburg. After the death of Wartislaw III in 1264, Barnim I united the whole of Pomerania under his rule. He introduced German settlers and customs into the duchy, founded many towns, and was known for his generous ecclesiastical foundations.
His eldest son Bogislaw IV was co-ruler from 1276 and sole ruler after Barnim's death, sharing power with Barnim's younger sons by his second marriage Barnim II and Otto I from the 1290s.
