The last Scandinavian king, Erik Bloodaxe, was expelled and killed around 952, permanently uniting English into one kingdom.
Sweyn's father, Harald Bluetooth, was the first of the Scandinavian kings to officially accept Christianity, in the early or mid-960s.
He was the first Scandinavian king to accept Christianity.
The three Scandinavian kings eventually agreed to negotiate peace in the border area near Göta älv.
The Kings' Sagas are of the lives of Scandinavian kings.
Other Scandinavian kings used berserkers as part of their army of hirdmen and sometimes ranked them as equivalent to a royal bodyguard.
That was New Year's Eve, a day on which it was customary for Scandinavian kings to reward their retainers with gifts.
It has been suggested that the church was built by the son of a Scandinavian king, who had converted to Christianity.
These changes were adopted by the Scandinavian kings.
The names of Scandinavian kings are known only for the later part of the Viking Age.