Albert I was a Duke of Saxony, Angria, and Westphalia; Lord of Nordalbingia; Count of Anhalt; and Prince-elector and Archmarshal of the Holy Roman Empire. Even though his grandfather Albert the Bear had held the Saxon dukedom between 1138 and 1142, this Albert is counted as the first.
John the Younger or John of Denmark was the duke of Schleswig-Holstein-Sonderburg.
The Duchy of Saxe-Lauenburg, was a reichsfrei duchy that existed from 1296 to 1803 and again from 1814 to 1876 in the extreme southeast region of what is now Schleswig-Holstein. Its territorial center was in the modern district of Herzogtum Lauenburg and originally its eponymous capital was Lauenburg upon Elbe, though the capital moved to Ratzeburg in 1619.
John III of Holstein-Plön, called John the Mild, was a Count of Schauenburg and Holstein-Plön and Holstein-Kiel, ruling Holstein-Plön and Holstein-Kiel (1316–1359). Together with Count Gerhard III of Holstein-Rendsburg, John III was the lord ruling in guardianship the Danish Duchy of Schleswig 1332–1340. He was known as “John the Mild”.
Magnus, called Magnus with the Necklace or Magnus II, was Duke of Brunswick-Lüneburg, ruling the Brunswick-Lüneburg principalities of Wolfenbüttel and, temporarily, Lüneburg.
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 Griffin, died in 1660.
Bogislaw IV, of the House of Griffin, was Duke of Pomerania from 1278 until his death in 1309.
Eric I of Saxe-Lauenburg (c.1280–1360) was a member of the House of Ascania who ruled as one of the dukes of Saxony from 1282 until 1338.
John II of Saxe-Lauenburg was the eldest son of John I of Saxony and Ingeborg, a daughter or grandchild of Birger Jarl. He ruled the Saxony jointly with his uncle Albert II and his brothers Albert III and Eric I, first fostered by Albert II until coming of age. In 1296, John II, his brothers, and their uncle divided Saxony into Saxe-Wittenberg, ruled by Albert II, and Saxe-Lauenburg, jointly ruled by the brothers between 1296 and 1303 and thereafter partitioned among them. John II then ruled the branch duchy of Saxe-Mölln, later extended to become Saxe-Bergedorf-Mölln. In 1314, he officiated as Saxon Prince-elector in an election of a German king.
Albert IV of Saxe-Lauenburg was the eldest son of John II of Saxe-Lauenburg and Elisabeth of Holstein-Rendsburg, sister of Gerard III the Great. In 1321 Albert IV succeeded his father as Duke of Saxe-Bergedorf-Mölln, a branch duchy of Saxe-Lauenburg, while his mother served as regent, before she remarried Eric Christoffersen (*1307–1331*), a son of King Christopher II and co-ruler in Denmark.
Albert V of Saxe-Lauenburg was the second son of Duke Albert IV of Saxe-Lauenburg and Beata of Schwerin, daughter of Gunzelin VI, Count of Schwerin. Albert succeeded his elder brother John III in 1356 as Duke of Saxe-Bergedorf-Mölln, a branch duchy of Saxe-Lauenburg. He died without an heir and was succeeded by his younger brother Eric III.
Eric IV of Saxe-Lauenburg was a son of Eric II, Duke of Saxe-Lauenburg and Agnes of Holstein.
Eric V of Saxe-Lauenburg was a member of the House of Ascania; son of Duke Eric IV of Saxe-Lauenburg and Sophia of Brunswick-Lüneburg. Eric V and his brother John IV jointly succeeded their father in 1412 as dukes of Saxe-Lauenburg. After John IV had died in 1414, Eric ruled alone.
Bernard II of Saxe-Lauenburg was a member of the House of Ascania and Duke of Saxe-Lauenburg from 1426 to 1463. His full title was Duke of Saxony, Angria and Westphalia, however only ruling the branch duchy of Saxe-Lauenburg between 1426 and 1463.
Ernest III of Brunswick-Grubenhagen-Herzberg, was a member of the noble family of Guelph and a duke of Brunswick-Grubenhagen.
Bogislaw VI, Duke of Pomerania was duke of Pomerania-Wolgast.
Agnes of Holstein was a Countess of Holstein-Kiel by birth and by marriage a Duchess of Saxe-Lauenburg. She was the daughter of Count John III of Holstein-Plön and Catherine, daughter of Duke Henry III of Silesia-Glogau.
Nicholas, Count of Schauenburg and Holstein-Rendsburg was a titular Count of Schauenburg. Together first with his brother and then with his nephews, Nicholas was the co-ruling Count of Holstein-Rendsburg from 1340 until his death. In 1390 Nicholas and his nephews inherited Holstein-Kiel, which itself included former Holstein-Plön through reversion in 1350. So except of Holstein-Pinneberg Nicholas and his nephews had united all of Holstein. He was also co-ruler of Schleswig from 1375 to 1386. He was thus a leading member of the House of Schauenburg and an influential figure in the area north of the Elbe. He was the second son of Count Gerhard III of Holstein-Rendsburg and his wife, Sophia of Werle.
Albert II of Holstein was the ruling Count of Holstein-Rendsburg from his father's death, in 1381 or 1384, until 1397. From 1397 until his death, he was Count of Holstein-Segeberg.
Elizabeth of Holstein-Rendsburg was the regent of the Duchy of Saxe-Lauenburg during the minority of her son from 1321 until 1330. She was by two consecutive marriages, duchess of Saxe-Lauenburg and queen of Denmark by marriage (1330-1331) to Eric Christoffersen, son of Christopher II of Denmark.
