Klozum (Schiermonnikoog, Netherlands)

Klozum is a holiday feast celebrated every 5 December on the Dutch island of Schiermonnikoog. The name literally means "Uncle Claus". Despite the name and date, the tradition is not directly related to Sinterklaas, which is also celebrated on 5 December in the Netherlands. Rather, it is related to similar traditions on other Frisian Islands, such as Klaasohm on Borkum, Ouwe Sunderklaas on Texel, Opkleden on Vlieland, and Sunderklazen on Ameland.

Schiermonnikoog is an island, a municipality and national park in the Northern Netherlands. Schiermonnikoog is one of the West Frisian Islands, and is part of the province of Friesland. It is situated between the islands of Ameland and Rottumerplaat.

The Netherlands, informally Holland, is a country in Northwestern Europe, with overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Netherlands. The Netherlands consists of twelve provinces; it borders Germany to the east and Belgium to the south, with a North Sea coastline to the north and west. It shares maritime borders with the United Kingdom, Germany, and Belgium. The official language is Dutch, with West Frisian as a secondary official language in the province of Friesland. Dutch, English, and Papiamento are official in the Caribbean territories. People from the Netherlands are referred to as Dutch.