 Nevertheless, a traveller in 1615 going from Tournai (B) to Liège (B) wrote about the crystal clear water of the “Piéton”, the stream crossing Luttre, and the beauty of the landscape (green hills, forests and surrounding prairies).Because of the new ideas following the French Revolution in 1789, the Austrian Emperor (who was governing present day Belgian territories) wanted to impose reforms.It was followed by a period of unrest that ended with the French invasion in 1794.