The lord of Amstelland, Gijsbrecht IV of Amstel decided to join the insurrenction and became the leader of the Kennemers.

He wanted to remove his enemies from the nearby lands, and laid siege to Vredelant, but broke up his camp shortly after.

One of the rebels spoke to the guards: Ghi burgers, onse vriende, dat vrie volc van Kennemerlant, die groeten ju ende begheren volstandelike, dat ghi alle die edelinghe, die die meente te verswaren ende verdrucken pleghen, uut uwer stat verdrivet ende verbannet ende ghi hoer goet den armen luden ghevet Citizens, our friends, the free people of Kennemerland, they greet thee and absolutely desire, that you drive away and ban every noble from your city, who weigh down and oppress the crowd and that you give all their goods to the poor folk The farmers were let in by the members of the guilds, who believed they were also treated unfairly.

The insurgents then moved onto Zeist, where John I, Bishop-Elect of Utrecht and his uncle Otto II, Count of Guelders were lying in wait of the army.

According to legend, Saint Bavo appeared over the walls and scared off the attackers, but it is more likely that a knight named Jan Persijn sortied, and with other soldiers set fire to several villages in the Kennemerland.

Utrecht would remain in control of the guilds until the 10th of September 1276, when Zweder van Beusichem, the Marshall of the Bishop, captured the city after heavy fighting.

[4] Floris V made a treaty with the people of Kennemerland, and gave them the desired Landrecht in fear of them aiding the Frisians.

He was held prisoner in Zeeland, and was forced to submit to the Count of Holland, to whom he paid a sum of 2000 pounds as tribute.