Joseph Leinen is a German politician who served as Member of the European Parliament (MEP) from 1999 until 2019. He is a member of the Social Democratic Party, part of the Party of European Socialists.

Danuta Maria Hübner is a Polish politician and Diplomat and Economist and Member of the European Parliament. She has served as European Commissioner for Regional Policy from 22 November 2004 until 4 July 2009, when she resigned to become a Member of European Parliament for the Civic Platform. In 2012, Professor Hübner became a member of the International Honorary Council of the European Academy of Diplomacy.