Conversation so far:
is france in the southern or northern hemisphere
Located in western Europe, France is geographically positioned in the northern, as well as the eastern and western hemispheres.
what is the climate of france like
France has a mostly temperate climate. France generally enjoys cool winters and mild summers except along the Mediterranean where mild winters and hot summers are the norm.
what cities are in the south of france
The biggest cities of Southern France are Marseille, Toulouse, Bordeaux, Nice and Montpellier.

Question: which city is the biggest
Self-contained rewrite: which city in southern france is the biggest