According to the saga sources, the latter part of Harald's reign was disturbed by the strife of his many sons.
The number of sons he left varies in the different saga accounts, from 11 to 20.
Twelve of his sons are named as kings, two of them over the whole country.
He gave them all the royal title and assigned lands to them, which they were to govern as his representatives; but this arrangement did not put an end to the discord, which continued into the next reign.
When he grew old, Harald handed over the supreme power to his favourite son Eirik Bloodaxe, whom he intended to be his successor.
Eirik I ruled side-by-side with his father when Harald was 80 years old.
Harald died three years later due to age in approximately 933.

Harald Harfager was commonly stated to have been buried under a mound at Haugar by the Strait of Karmsund near the church in Haugesund, an area that later would be named the town and municipal Haugesund.
The area near Karmsund was the traditional burial site for several early Norwegian rulers.
The national monument of Haraldshaugen was raised in 1872, to commemorate the Battle of Hafrsfjord which is traditionally dated to 872.
According to the saga sources, the latter part of Harald's reign was disturbed by the strife of his many sons. The number of sons he left varies in the different saga accounts, from 11 to 20. Twelve of his sons are named as kings, two of them over the whole country. He gave them all the royal title and assigned lands to them, which they were to govern as his representatives; but this arrangement did not put an end to the discord, which continued into the next reign. When he grew old, Harald handed over the supreme power to his favourite son Eirik Bloodaxe, whom he intended to be his successor. Eirik I ruled side-by-side with his father when Harald was 80 years old. Harald died three years later due to age in approximately 933.
Harald Harfager was commonly stated to have been buried under a mound at Haugar by the Strait of Karmsund near the church in Haugesund, an area that later would be named the town and municipal Haugesund. The area near Karmsund was the traditional burial site for several early Norwegian rulers. The national monument of Haraldshaugen was raised in 1872, to commemorate the Battle of Hafrsfjord which is traditionally dated to 872.
Harald Fairhair