The Duchy of Pomerania was a duchy in Pomerania on the southern coast of the Baltic Sea, ruled by dukes of the House of Pomerania (Griffins). The country existed in the Middle Ages between years 1121–1160, 1264–1295, 1478–1531, and 1625–1637.
The House of Griffin or Griffin dynasty was a dynasty ruling the Duchy of Pomerania from the 12th century until 1637. The name "Griffins" was used by the dynasty after the 15th century and had been taken from the ducal coat of arms. Duke Wartislaw I was the first historical ruler of the Duchy of Pomerania and the founder of the Griffin dynasty. The most prominent Griffin was Eric of Pomerania, who became king of the Kalmar Union in 1397, thus ruling Denmark, Sweden and Norway. The last Griffin duke of Pomerania was Bogislaw XIV, who died during the Thirty Years' War, which led to the division of Pomerania between Brandenburg-Prussia, Sweden and Poland. Duchess Anna von Croy, daughter of Duke Bogislaw XIII and the last member of the House of Griffin, died in 1660.
Barnim I the Good, from the Griffin dynasty, was a Duke of Pomerania from 1220 until his death.
Henry I was a Prince of Mecklenburg-Werle and Mecklenburg-Güstrow.
Barnim II was Duke of Pomerania.
Otto I, Duke of Pomerania was Duke of Pomerania-Stettin.
Bogislaw IV, of the House of Griffin, was Duke of Pomerania from 1278 until his death in 1309.
Henry I, a member of the House of Ascania, was Count of Anhalt from 1212 and the first ruling Anhalt prince from 1218 until his death.
Albert I was a German prince of the House of Ascania and the second ruler of the Principality of Anhalt-Zerbst from 1298 until his death.
Matilda of Brandenburg, a member of the House of Ascania, was first Duchess consort of Brunswick-Lüneburg from 1235 to 1252 by her marriage with the Welf duke Otto the Child.
Barnim VIII, Duke of Pomerania was Duke of Pomerania–Wolgast–Barth.
John II, Lord of Werle[-Güstrow] nicknamed The Bald, was from 1309 to 1316 co-regent of Werle and from 1316 to 1337 Lord of Werle-Güstrow. He was the second eldest son of John I of Werle and Sophie of Lindow-Ruppin.
Henry II, Lord of Mecklenburg, nicknamed the Lion was regent of Mecklenburg from 1287 to 1298, co-regent from 1298 to 1302 and ruled alone again from 1302 to 1329.
Swantibor I, previously referred to by historians as Swantibor III was a member of the House of Griffin, a Duke of Pomerania-Stettin and for a while governor of the Mittelmark.
John I, Margrave of Brandenburg was from 1220 until his death Margrave of Brandenburg, jointly with his brother Otto III "the Pious".
Nicholas II, Lord of Werle was Lord of Werle-Parchim from 1283 until his death, and from 1292 Lord of Werle.
Nicholas I, Lord of Werle, was Lord of Rostock from 1229 to 1234 and Lord of Werle from 1234 until his death.
