Albert IV, Duke of Saxe-Lauenburg

Albert IV of Saxe-Lauenburg (1315 – 1343) was the eldest son of John II of Saxe-Lauenburg and Elisabeth of Holstein-Rendsburg (*ca. 1300–before 1340*), 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 IV
Duke of Saxe-Bergedorf-Mölln
Reign	1321–1343
Predecessor	John II of Saxe-Lauenburg
Successor	John III of Saxe-Lauenburg
Born	1315
Died	1343
Saxon consorts	(1) Beata of Schwerin (2) Sophia of Werle-Güstrow
Issue Detail	John III Albert V Eric III
House of	Ascania (by birth)
Father	John II of Saxe-Lauenburg
Mother	Elisabeth of Schauenburg and Holstein-Rendsburg

Ancestry

Ancestors of Albert IV, Duke of Saxe-Lauenburg

8. Albert I, Duke of Saxony 4. John I, Duke of Saxony 9. Helen of Brunswick and Lunenburg 2. John II, Duke of Saxe-Lauenburg 10. Birger Jarl 5. Ingeborg Birgersdotter of Småland 11. Ingeborg Eriksdotter of Sweden 1. Albert IV, Duke of Saxe-Lauenburg 12. Gerard I, Count of Schauenburg and Holstein-Itzehoe 6. Henry I, Count of Schauenburg and Holstein-Rendsburg 13. Elisabeth of Mecklenburg 3. Elisabeth of Schauenburg and Holstein-Rendsburg 14. Florence of Bronckhorst 7. Heilwig of Bronckhorst 15. Ermengarde of Anholt

Marriages and issue

Albert married twice, in 1334 (1) Beata of Schwerin (*?–before 1341*), daughter of Gunzelin VI, Count of Schwerin, and in 1341 (2) Sophia of Werle-Güstrow (*1329–5 September 1364*), daughter of Lord John II of Werle-Güstrow. Both wives also officiated as Saxon consorts. With Beata Albert had the following children:

• John III (*mid-1330s–1356*)
• Albert V (*mid-1330s–1370*)
• Eric III (*mid-1330s–1401*).