Flag of the Netherlands the 15th century, when the majority of the Netherlands provinces were united under the Duke of Burgundy, the Cross of Burgundy Flag of the Duke of Burgundy was used for joint expeditions, which consisted of a red saltire resembling two crossed, roughly-pruned (knotted) branches, on a white field. Under the later House of Habsburg this flag remained in use. In 1572 provinces of the Low Countries rose in revolt against King Philip II of Spain, and William Prince of Orange (1533–1584) placed himself at the head of the rebels. The colour "orange" is a reference to the name of the
Flag of Switzerland so that the ratio of cross to flag width is 5:12. The shade of red used in the flag was not defined by law prior to 2017. The 2017 flag law specifies the colour of the flag as: In 2004, the Federal Chancellery published a corporate design guide for the federal administration, in force since 1 January 2007. The colour specifications given there are compatible with those later put in the annex to the flag law. The matching of heraldic tincture to modern color specifications for print or screen display is very uncertain, and to some extent left to the