Eric the Victorious was a Swedish monarch as of around 970. Although there were earlier Swedish kings, he is the first Swedish king in a consecutive regnal succession, who is attested in sources independent of each other, and consequently Sweden's list of rulers usually begins with him. His son Olof Skötkonung, however, is considered the first ruler documented to definitely have been accepted both by the original Swedes around Lake Mälaren and by the Geats around Lake Vättern. Adam of Bremen reports a king named Emund Eriksson before Eric, but it is not known whether he was Eric's father. The Norse sagas' accounts of a Björn Eriksson are considered unreliable.

Haakon Sigurdsson, known as Haakon Jarl, was the de facto ruler of Norway from about 975 to 995. Sometimes he is styled as Haakon the Powerful, though the Ágrip and Historia Norwegiæ give the less flattering name Hákon Illi, that is, Haakon the Bad.