Mother tongue is Dutch, so there's that.
And being Belgian, obligatory French lessons in Flemish schools back then, I think I was 8.
They used a very popular Belgian comic book for this "Bob et Bobette" (Suske & Wiske).
I've then had French until my last day of school, when I was 19.
Got English when I was 14, and German only in my last 2 years of school when I was 17.