Case C-438/14: Judgment of the Court (Second Chamber) of 2 June 2016 (request for a preliminary ruling from the Amtsgericht Karlsruhe — Germany) — Nabiel Peter Bogendorff von Wolffersdorff v Standesamt der Stadt Karlsruhe, Zentraler Juristischer Dienst der Stadt Karlsruhe (Reference for a preliminary ruling — Citizenship of the Union — Article 21 TFEU — Freedom to move and reside in the Member States — Law of a Member State abolishing privileges and prohibiting the conferring of new noble titles — Surname of an adult, national of that State, obtained during a habitual residence in another Member State of which that person also holds the nationality — Name comprising tokens of nobility — Residence in the first Member State — Refusal by the authorities of the first Member State to enter the name acquired in the second Member State in the register of civil status — Justification — Public policy — Incompatibility with the essential principles of German law)