Revista Temas de Derecho Constitucional

316 Revista Temas de Derecho Constitucional las implicaciones más profundas de la cuestión preliminar para el fortalecimiento del derecho constitucional europeo. PALABRAS CLAVE Brexit; Derecho Constitucional de la UE; Principios; Articulo 50 TUE; retiro de la UE ABSTRACT The main goal of the article consists in dissecting and analysing the legal aspects in- volved in the broader context of the interplay between international law and EU law. Precisely, the focus of the analysis is placed on these different relations between inter- national law and EU Law looking beyond Brexit. The fulcrum of the arguments relates to the intricate relationships between these two legal systems. Particularly, the article details how these legal orders interact and speak to both international law and EU law scholarships. This article thus considers the ECJ preliminary ruling in Wightman from the perspective of the relationships and interactions between public international law and European Union law, pinpointing the peculiarities of the case and extracting the commonalities with relevant case law in international law and EU law. It touches upon aspects such as the embeddedness of international law in EU law, the Europeization of international law and the triangular relation between international law, EU law and the national legal orders of the EU Member States. The article is structured as follows. First, the article thus examines the content of the question for preliminary ruling and the pro- cedure of withdrawal under Article 50 TEU and UK constitutional law. After doing so, the article turns the attention to examining the main controversial questions. This will be followed by an analysis of the wider implications of the preliminary ruling in Wightman and a short conclusion. KEYWORDS Brexit; EU Constitutional Law; Principles; Article 50 TEU; Withdrawal from the EU