King Håkon II Herdebrei 'the Broadshouldered' Sigurdsson of Norway
- Born: Abt 1147, Norway
- Died: 1162, Norway about age 15
Håkon Broadshouldered, Norwegian Håkon Herdebreid, illegitimate son of Sigurd Munn (d. 1155). On the death of his uncle King Eystein II in 1157, the 10-year-old Håkon received the support of Eystein's partisans against the rival king, Inge I, whom they finally defeated and killed in 1161. In 1162, however, the supporters of another pretender, Magnus Erlingsson, defeated the forces of the boy-king Haakon and killed him.
Håkon was the son of Sigurd Munn and he became king after his uncle king Øystein died in 1157. As Håkon by that time only was 10 years old, he didn't rule the country by himself, it was rather though Sigurd Håvardsson.
Håkon's Epithet "Herdebrei" means as much as "Broad-shouldered" and has no reference in the Saga, but one can assume that he was a strong man.
Håkon had strong support in the Trondheim area, and they went to Viken, but had to retreat as King Inge's men were stronger in force.
There was open war between the two kings, and after an early defeat, Håkon managed to gain victory. Gregorius, one of King Inge's most loyal men, fell.
Later King Inge was killed in the Battle on the Ice of the Oslofjord.
Håkon was now sole king of Norway. He gathered all the sons of his father Sigurd and his uncle Øystein around him to support him
After the death of King Inge, Erling Skakke, who had been a loyal servant to King Inge, gathered a strong force of men loyal to Inge. in 1161, he made his 5 years old son Magnus Erlingsson king, as he was a son of the daughter of Sigurd Jorsalfar. Erling also gained support from the King of Denmark.
Only one year later, in 1162, Håkon and Erling met in a naval battle near Sekken, and here Håkon was killed when he entered the ship of Erling Skakke.