[1] Traditionally established in 872 and existing continuously for over 1,100 years, the Kingdom of Norway is one of the oldest states of Europe: King Harald V, who has reigned since 1991, is the 64th monarch according to the official list.
They called themselves Konge til Norge ("King of Norway"), usually with the style His Royal Majesty.
[citation needed] The last king to use the by the grace of God style was Haakon VII, who died in 1957.
After Harald's death, Eric ruled as "overking" of his brothers, who also held status as kings and had control over certain regions.
[14] Eric is generally held as the de facto ruler of Norway from 1000 to 1015, together with his brother Sweyn, a lesser known figure, with whom he shared his power.
With him the House of Oldenburg, in the form of its junior branch, resumed occupancy of the throne of Norway.