Ingeborg of Mecklenburg-Schwerin
Ingeborg of Mecklenburg was a daughter of Albert II, Duke of Mecklenburg and his wife, Euphemia of Sweden. Euphemia was a daughter of Ingeborg of Norway, who was the only legitimate child of King Haakon V of Norway. Thus, Ingeborg of Mecklenburg was Haakon V's great-granddaughter.
In 1360, she married Louis VI "the Roman" of Bavaria; she was his second wife. The marriage remained childless.
After Louis's death, she married Henry II, Count of Holstein-Rendsburg. They had at least four children:
