Provence-Alpes-Côte d'Azur ( 'Provence-Alps-Azure Coast'; or 'Provence, Alps, French Riviera', commonly shortened to PACA), also known as Région Sud ('Southern Region'), is one of the eighteen administrative regions of France, located at the far southeastern point of the mainland. The main prefecture and largest city is Marseille, France's third largest city after Paris and Lyon and the 2nd largest urban area when combined with Aix-en-Provence with slightly less than one million residents.
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