Haakon V Magnusson was king of Norway from 1299 until 1319.
Background
Haakon was the younger surviving son of Magnus the Lawmender, King of Norway, and his wife Ingeborg of Denmark. Through his mother, he was a descendant of Eric IV, king of Denmark. At the same time, Haakon was given the title "Duke of Norway", and from his father"s death in 1280, ruled a large area around Oslo in Eastern Norway and Stavanger in the southwest, subordinate to King Eirik.
Career
Haakon was married to Eufemia of Rügeneral, the daughter of Günther, Count of Arnstein. In 1312, his only legitimate daughter, Ingeborg Håkonsdotter married duke Eric Magnusson of Sweden, a younger brother of King Birger of Sweden. Their son, Magnus Eriksson would succeed Haakon V as king of Norway.
He also had an illegitimate daughter named Agnes Hákonardottir.
During Haakon"s reign, Oslo gradually took over the functions of capital of Norway from Bergen, though there was no official pronouncement of this at any time. Haakon is also associated with the construction of Akershus Fortress (Akershus Festning) and Bohus Fortress (Båhus festning).
During his reign he revived his brother"s war policy against Denmark, but in 1309 he finally concluded a peace that in general was the end of a period of Dano-Norwegian wars. In domestic matters he energetically and successfully tried to limit the power of the magnates and to strengthen the king"s power.
Havtore Jonsson was put in the guardianship government until he himself died the following year.
Haakon was buried in Saint Mary"s church (Mariakirken) in Oslo. Remains of two people, deemed to be Haakon and Eufemia, were discovered during excavations of the ruins of that church and reinterred in the royal mausoleum at Akershus Castle.