 The similarity of the two flags has given rise to a national debate to change the flag of Luxembourg, initiated by Michel Wolter in 2006.At the end of 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.