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  | |||||||||
  | |||||||||
| 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.