But only after the Belgian revolt, not after. There is no reason for Limburg to become part of the German confederation with a different Belgian revolution and with all of Luxemburg part of the German Confederation. Also titles don´t say everything. The Dutch queen is Marques of Antwerp, that doesn´t make Antwerp part of the Netherlands.Well sometimes the titles of a king gives a good clueOne of the titles of Willem I was Duke of Limburg. For all non-Dutch and Belgians: Limburg was part of the German Confederation between 1839 and 1866.