I think I might name it the United Kingdom (or United Empire) of Europa, a name I basically stole from @Napoleon53's excellent timeline What Madness is This? Though the Kingdom of France-Netherlands-Spain-Italy-Austria-Hungary does roll off the tongue better than 'Europa.'I love it! What's the official name for the French state? Because right now I'm really hoping it's the Kingdom of France-Netherlands-Spain-Italy-Austria-Hungary