Here's why your question is tricky:
* Francophone is a cultural and linguistic term, not a political one. It encompasses many countries and regions around the world.
* Each country within the Francophone world has its own capital city. For example, the capital of France is Paris, the capital of Canada is Ottawa, and the capital of Senegal is Dakar.
If you're interested in specific capital cities, you'll need to specify the Francophone country you're asking about.