I don't know if the Franco-Prussian war is canon, but if it is I'm fine with it if no one else has a problem. The only thing that is definitely not canon about it is the CEL alliance shenanigans. Germany is kind of tricky because its old history is a mess, but I think we settled that it was split into two nations for a while, one of them named Prussia, and that they later united and became Germany again. So I don't know which nation France would have been fighting against.

Aside from that, I think the only thing to point out is that Fitzroy-France is non-canon. You can keep it if you want, I guess, but you don't have to. He was also a dude, but if you want to give him a sex-change that's probably fine too.

EDIT: Fitzroy-France is fine to keep as long as you exclude the invasions he did.