In 1345, William IV, count of Holland, prepared to conquer Middle Frisia by crossing the Zuiderzee with a large fleet and with the help of French and Flemish knights, some of whom had just returned from a crusade.

He set sail in Enkhuizen to cross the Zuiderzee, together with his uncle John of Beaumont, and landed near Stavoren and Laaxum.

The Hollandic knights wore armour, but had no horses as there was not enough room in the ships, which were full of building materials and supplies.

William's troops set fire to the abandoned villages of Laaxum and Warns and started to advance towards Stavoren.

The table shows the part of Van Malderghem's list that he based on the Chronique Anonyme de Valenciennes and Beke.

Since 1945 it takes place at the last Saturday of September, reinterpreted, however, in the light of the victory over fascism and the upcoming struggle for recognition of the Frisian language.

There is a monument on the Red Cliffs in Warns since 1951, a large glacial erratic with the 19th-century romantic text leaver dea as slaef [sic] (rather dead than slave).

The road to Scharl is traditionally called the ferkearde wei (the wrong way) by locals, as it is considered (according to the 19th-century romantic vision) the way the Hollandic knights chose to their downfall.