News from the Grand Ducal Family News are only available in the original language.Categories Environment & Ecology Audiences Commemorations & Birthdays Conferences Culture Economy Education Environment & Ecology Europe Health History, cultural and social heritage Institutions & Politics International relations Press releases Receptions Social & humanitarian activities Speeches Sport State visitsMembers of the Family H.R.H. the Grand Duke H.R.H. the Grand Duke H.R.H. the Grand DuchessDates 2014 2025 2024 2023 2022 2021 2020 2019 2018 2017 2015 2014 2009Keywords Reset Environment & Ecology 2014 H.R.H. the Grand Duke 20ème anniversaire du Syndicat Intercommunal de Dépollution des Eaux24.10.2014