The problem with à/en has been brought up in other threads but since they are closed I have decided to open a new one. Please feel free to move it to a better place. From the information provided in this forum I understand that whilst it should be 'habiter à Avignon` (since it is a city), one uses en because it is easier to pronounce. Do we do this with all the cities beginning with the vowel a or just with Avignon? Many thanks once again.