Carnival in the Netherlands is called Carnaval, Vastenavond or Vastelaovend(j), and is most celebrated in traditionally Catholic regions, mainly the southern provinces North Brabant and Limburg. Dutch Carnaval is officially celebrated on the Sunday through Tuesday preceding Ash Wednesday. Although traditions vary from town to town, some common characteristics of Dutch Carnaval include a parade, a "prince" plus cortège ("Jester/adjutant and Council of 11"), a Peasant Wedding (boerenbruiloft), and eating herring (haring happen) on Ash Wednesday.
What is consumed on Ash Wednesday?
herring