Åsa Haraldsdottir of Agder
Åsa Haraldsdottir of Agder (died ca. 834?) was a semi-legendary Norwegian Viking Age queen regnant of the petty kingdom of Agder. According to sagas referencing the clan Yngling (Ynglingaätten), she was the mother of Halfdan the Black (Halvdan Svarte) and grandmother of King Harald Fairhair (Harald Hårfagre). 
Åsa was the daughter of King Harald Granraude of Agder and a reputed beauty. King Gudrød the Hunter (Gudrød Veidekonge) of Borre in Vestfold proposed marriage to her after the death of his first wife, but her father refused the marriage. Gudrød Veidekonge then killed her father and her brother, abducted her and married her. One year later, she became the mother of Halfdan the Black. One year after this, Åsa took her revenge and had her servant kill her husband. 
She left the kingdom of Borre to her stepson Olaf Geirstad-Alf and took her own son with her to the kingdom of Agder, her birth country, where she took power. Åsa ruled Agder for twenty years, and after this she left the throne to her son, Halvdan. He also demanded half of his father's kingdom from his half-brother.
- Claus Krag. "Åsa Haraldsdatter, Dronning". Norsk biografisk leksikon. Retrieved May 25, 2016.
- Claus Krag. "Harald 1 Hårfagre". Norsk biografisk leksikon. Retrieved May 25, 2016.
- Ynglingaätten (Nordisk familjebok (1922) pg 557-561)
- Claus Krag. "Gudrød Veidekonge, Sagnkonge". Norsk biografisk leksikon. Retrieved May 25, 2016.
- Claus Krag. "Halvdan Svarte, Småkonge". Norsk biografisk leksikon. Retrieved May 25, 2016.
- Dronning Åsa av Oseberg (Vitenskap-og-teknologi – NRK)
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