Career
Some sources claim the wounds were mortal, but he lived until 25 March 1500. General Sten Sture ordered Posse to load the Stockholm Garrison onto boats to ready a surprise attack on Christian I of Denmark"s Danish and German Army. His order were to attack the Danes in the rear, at Saint Klara.
The Danes would then be attacked on three sides: Sten Sture would attack from the south, Nils Sture would flank the Danes and attack from the rear, and Posse would attack the Danes from the east flank near Saint Klara.
The Danish were completely surprised by Posse"s attack. Soon after the battle started, Christian I sent more troops to reinforce the Saint Klara position.
The Danish Armies were no match for Posse"s men, whom he led from the front. Posse"s legs were hit by several Danish arrows.
A German or Danish knight is supposed to have fractured his skull with a battle axe, and he was carried back to Stockholm.
That is where some sources claim that he died of his wounds.
