Lex Delles was born on 28 November 1984. He is originally from Mondorf-les-Bains.
Following secondary studies, Lex Delles began studying law at the University of Luxembourg before graduating in educational sciences at HERS (Haute Ecole Robert Schuman) in Virton (Belgium).
On 5 December 2018, HRH the Grand Duke conducted the swearing in of the Prime Minister, the Deputy Prime Ministers and the appointed ministers.
