The European Legal order, created by the European Court of Justice [ECJ], is an astonishingly effective treaty enforcement system. Previous explanations of its ‘transnational’ or ‘constitutional’ development have focused on the politics of judicial networks, and the wider political and economic context of postwar European democracy. Judicial biography has been almost entirely overlooked, even in the case of Robert Lecourt, widely acknowledged as the leading judge in the Court’s revolutionary period. Unknown to research on the ECJ, however, Lecourt had already spearheaded the adoption of the famous Article 49-3 of France’s 1958 Constitution. This paper demonstrates that the constitutional doctrines of European law and Article 49-3 were in fact premised on a similar ideology, that the pursuit of ‘effectiveness’ may require unprecedented restrictions on the traditional law-making role of national parliaments. Those were the constitutional values of the judge that, more than any other, built the foundations of the European legal order.
