Sigillum ad causas for Magnus II of Sweden

Magnus II Ericson, Magnus VII of Norway, (1316–1377), King of Sweden, Norway and Terra Scania, son of Duke Eric and Ingeborg, daughter of Hakon V of Norway. Magnus had succeeded to the Norwegian throne when at age four he was elected king of Sweden in 1320. Under the Regencies of his Grandmother Queen Helvig and his Mother Duchess Ingeborg the countries were ruled by Knut Jonsson and Erling Vidkunsson .

In 1332 the king of Denmark Christopher II died as a "king without a country" having pawned Denmark piece by piece. King Magnus took advantage of his neigbour's distress, redeeming the pawn for the eastern Danish provinces for a huge amount of silver, and thus became ruler also of Terra Scania.

In 1336 he married Blanche of Namur, daughter of Count Jean of Namur and Marie of Artois, a descendant of Louis VIII of France. In 1343 their son Haakon was designated to succeed his father to the Norwegian throne as Haakon VI, even though Magnus remained ruler during his minority.

Because of the raise in taxation to pay for the acquisition of the Scanian province, some Swedish nobles supported by the Church attempted to oust Magnus, setting up his elder son Eric as king (Eric XII of Sweden), but Eric died supposedly of the plague in 1359, with his wife Beatrice of Brandenburg and their two sons.

King Valdemar IV of Denmark conquered Terra Scania in 1360. In 1363 Magnus was deposed from the Swedish throne seeking refuge with his younger son in Norway, where he drowned in 1377.

See also: Unions of Sweden

|- style="text-align: center;" | width="30%" |Preceded by:
Haakon V | width="40%" style="text-align: center;" |King of Norway
1320–1377 | width="30%" |Succeeded by:
Haakon VI