When was the Arumer Black Heap or Arumer Zwarte Hoop disband?

The Arumer Black Heap was founded in 1515 by Pier Gerlofs Donia (aka Grutte Pier). It was a band of warriors, brothers in arms, all of Frisian nationality and ancestry. They fought for the freedom of their country, with such fierce and fire, that they soon became legendary, together with their giant commander Grutte Pier. After his death, Pier's nephew, Wijerd (Wierd or Wijard) took over the command of Pier's forces. Under Wijard, the Arumer Black Heap lost almost all it's esteem and honour's. Soon, Wijard died after an accident with the longsword of his giant uncle (which was obviously to big for him to handle), and died. That way, just days after Pier's death, the Heap was disbanded.

First answer by Saalopi. Last edit by Saalopi. Contributor trust: 30 [recommend contributor]. Question popularity: 71 [recommend question]