Born 1353 at Söborg, Denmark. Parents: King Valdemar Atterdag of Denmark and Helvig of Sönderjylland.
Ruled Denmark from 1376 and Norway from 1380 in the name of her son Olav. Defeated Albrekt 24 of February 1389 and was recognized as Queen of Sweden (a title she had used since 1375). She later ruled in the name of Erik, who in 1389 had been elected King of Norway and in 1396 King of Denmark and Sweden. She died 28 of October 1412 onboard her ship in the port of Flensborg.
Married 9 of April 1363 at Copenhagen's Palace to King Håkan VI of Norway. Child: Olav (1370-1387).