Siege of Älvsborg (1439)

Siege of Älvsborg
Part of Karl Knutsson's campaign against Eric of Pomerania

View of Älvsborg Fortress in the Suecia Antiqua et Hodierna
DateSummer 1439 – ? (10 weeks)
Location
Älvsborg, Sweden
Result Swedish victory
Territorial
changes
Norwegians retreat from Älvsborg
Belligerents
Sweden Norway
Commanders and leaders
Ture Turesson Johan Umreise
Olaf Buk 
Units involved
Älvsborg garrison
Relief force
Unknown
Strength
Garrison
Unknown
Relief force
Likely large
700 men
Casualties and losses
8 taken hostage 200 killed
Several wounded and captured

The siege of Älvsborg (Swedish: Belägringen av Älvsborg; Norwegian: Beleiringen av Älvsborg) occurred in 1439, beginning in the summer and lasting 10 weeks. It eventually ended with a Norwegian retreat after a relief force led by Ture Turesson attacked the besiegers.