Lambertz was president of the European Committee of the Regions (CoR) from 12 July 2017 until 12 February 2020 [1] after serving a 2+1⁄2-year term as first vice-president.

Born on 4 June 1952 in Schoppen, Lambertz' interest in politics came early in his career, having served as President of the German-speaking Youth Council (1975–1980).

After a number of functions linked to his academic background in law, he became a member of Parliament for the German-speaking Community in 1981.

Between 1990 and 1999, he held numerous ministerial posts in the German-speaking Community government before being elected as Minister-President (1999–2014).

In 2014, he became President of the Parliament for the first time, a post he held until 2016 before he was appointed to represent the German-speaking Community in the Belgian Senate.