The flag of Utrecht

Utrecht (province)

Utrecht is the smallest province of the Netherlands in terms of area, and is located in the centre of the country. It is bordered by the Eemmeer in the north, Gelderland in the east, the river Rhine in the south, South Holland in the west, and North Holland in the northwest...

has been in use since 1952. It consists of two horizontal stripes of equal width, the upper one white and the lower one red. Similar to the flag of Poland

Flag of Poland

The flag of Poland consists of two horizontal stripes of equal width, the upper one white and the lower one red. The two colors are defined in the Polish constitution as the national colors. A variant of the flag with the national coat of arms in the middle of the white stripe is legally reserved...

 or an upside-down flag of Monaco

Flag of Monaco

The national flag of Monaco has two equal horizontal bands of red and white, both of which have been the heraldic colors of the House of Grimaldi since at least 1339...

. In the top left corner of the flag there is a red square with a white cross. The flag originates from two other flags, one part of the Archdiocese of Utrecht

Roman Catholic Archdiocese of Utrecht

The Archdiocese of Utrecht is an archdiocese of the Catholic Church in the Netherlands. The archdiocese is the metropolitan for 6 suffragans, the dioceses of Breda, Groningen-Leeuwarden, Haarlem-Amsterdam, Roermond, Rotterdam, and 's-Hertogenbosch....

, and the other of the (territorial) Archbishopric of Utrecht. In 1951 the province was advised by the Hoge Raad van Adel to adopt a flag to represent the province.