A dissatisfaction had built up among the insurgents, and after most likely failing the first uprising against Sweden the Folkungs, led by Filip Knutsson, made a second attempt.

[1][2] After the attempt of recruiting soldiers from Norway which wasn’t appreciated, Filip Knutsson and Knut Magnusson requested German and Danish knights to join their revolt against Sweden and the regent, Birger Jarl.

[4][6] Even though Birger Jarl was good at not bringing jealously to the Folkung league over his power and authority as a regent, it still triggered many nobles.

After big dissatisfaction due to not getting what they wished in 1247 (Battle of Sparrsätra) where the Folkungs made another uprising, thus led to an anger building up among the insurgents.

This time the Folkungs were defeated once and forever; the insurgents were crushed, and they disappeared as a political power.