It is a popularly held belief among the French that their wine is the best in the world.
Advanced English Dictionary
+adverb 1 by a large number of people Synonym: COMMONLY a popularly held belief + the UN Conference on Environment and Development, popularly known as the 'Earth Summit' 2 by the ordinary people of a country Synonym: DEMOCRATICALLY a popularly elected government
Random quote: Can you imagine what I would do if I could do all I can?: Sun Tzu