Input (grade 10): Medemblik used to have a castle back in the 1500s but it was destroyed by the Arumer Zwarte Hoop led by Pier Gerlofs Donia and Wijard Jelckama.
Output (grade 9): It had a castle back in the 1600's, but the castle was destroyed by Pier Gerlofs Donia and Wijerd Jelckama during a siege.