On 3 August 1986, Prince Louis was born to the Grand Ducal couple in the Grand Duchess Charlotte maternity wing.

The prince, born Prince Louis Xavier Marie Guillaume, is the Grand Ducal couple's third child. He has two sons with his former wife Tessy Antony (the couple separated in 2017): Prince Gabriel Michael Louis Ronny, who was born on 12 March 2006 in Geneva and Prince Noah Etienne Guillaume Gabriel Matthias Xavier, who was born on 21 September 2007.

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Prince Louis went to the International School of Luxembourg and the Collège Beau Soleil in Switzerland. He acquired a passion for humanitarian work and has since taken part in missions in Mumbai and a traineeship with the Red Cross in Geneva.

Following two years of training in aeronautics and aeronautical management in the United States, the prince moved to the UK with Antony and graduated from the American International University in London with a BA in Art in Communications. The prince also has an MA in Psychosocial Studies from Birkbeck University London.

Prince Louis was accorded the honour of Knight of the Gold Lion of the House of Nassau in 2004. He now works in Paris as a consultant for Laurent Meeschaert Conseil.

Happy birthday!