I don't speak French, so as far as that goes I'm no help to you. However, I do have a...suggestion? It's just that I honestly don't think the French Ministry of Magic would be called...well, the French Ministry of Magic.

It's just that...I've always thought it was called the Ministry of Magic because in Britain they're all like, Ministries. You know, like the Ministry of Defence, the Ministry of Education, etc. I don't know what they're called in France, but I think if you found out that could be helpful...