My son is going to be married in June (and that's a mystery - how did he get from being my baby to being married in, umm, about ten years?)
He is British, of Italian, Scottish and Irish descent. His fiancée is French of Algerian and Egyptian descent. Attending the wedding will be family from France, Scotland, Ireland, Italy, Algeria, Egypt, Canada, England, Monaco, Iran and the US. Friends could come from anywhere.
Not everyone speaks French or English.
It will be interesting.