| 6000 marks war | |||||||
|---|---|---|---|---|---|---|---|
| |||||||
| Belligerents | |||||||
 Denmark |
 Sweden | ||||||
| Commanders and leaders | |||||||
|
Eric V of Denmark Stig Andersen Hvide |
Magnus Birgersson Ulf Karlsson | ||||||
| Strength | |||||||
| Unknown | More than 200 | ||||||
| Casualties and losses | |||||||
| Unknown | Unknown | ||||||
The 6000-mark war (Swedish: 6000-markskriget, Danish: 6000-marks-krigen) was a war between Denmark and Sweden which took place from 1276 to 1278. It started because of a disagreement over an agreed sum of 6,000 silver marks for Danish assistance to Magnus Birgersson in the battle against Valdemar Birgersson in 1275.