Seven of the member states of the European Union are monarchies. They are, in alphabetical order, Belgium, Denmark, Luxembourg, the Netherlands, Spain, Sweden and the United Kingdom. It is to these European monarchies that the European Constitutional Law Review dedicates a series of articles. Its aim is to find answers to questions regarding their current organization and legitimation, the (remaining) monarchical competences or powers and the republican ‘opposition’. The overriding aim is to see what the Union means for them and how monarchies can survive constitutionally in the European Union (if at all).