TY - JOUR AU - Maurer, Heidi AB - * We wish to thank Simon Duke, Kolja Raube and Jan Melissen, as well as the anonymous reviewers, for their useful comments on earlier drafts for this special issue of The Hague Journal of Diplomacy. We are also grateful to the Research Stimulation Fund at the Faculty of Arts and Social Science, Maastricht University, for financially supporting an authors’ workshop.IntroductionBartolino di Codelupi is probably the first resident ambassador in the world about whom we know anything, especially that in 1375 he represented the Gonzaga of Mantua at the court of the Visconti in Milan.1 Fast-forward a few centuries, and in 2010 the Council of the European Union (eu) adopted a decision establishing the European External Action Service (eeas), composed also of ‘Union Delegations to third countries and international organisations’.2 In this decision, eu member states established resident eu delegations, with a set of functions and characteristics that Codelupi would have easily recognized. One of these functions, however, would have surprised him. The Lisbon Treaty tasked diplomatic missions of eu member states and eu delegations in third countries and at international organizations with cooperating and contributing to the formulation and implementation of a common eu approach (Art. 32). In other TI - Introduction JO - The Hague Journal of Diplomacy DO - 10.1163/1871191X-13010003 DA - 2018-09-15 UR - https://www.deepdyve.com/lp/brill/introduction-gp3z9K4LEc SP - 1 EP - 19 VL - 13 IS - 1 DP - DeepDyve ER -