The son of Finnish Formula One World Champion Keke Rosberg and his wife Sina, Nico spent much of his youth in Monaco with his family, and still lives in the principality. Rosberg speaks fluent German, English, Italian, Spanish and French; but only a little Finnish, though he is learning the language. In lower formulae drivers race under the nationality of the country that issued their racing licence. Rosberg competed under the Finnish and German flags at different times during his early career. Rosberg races under the German flag in Formula One.