Bmw Licence Plate Mount I Saw A Car In Belgium Yesterday, A Chaufffeur Driven BMW With Licence Plate A1. Was That Someone Important?

I saw a car in Belgium yesterday, a chaufffeur driven BMW with licence plate A1. was that someone important? - bmw licence plate mount

He was in Brussels? Case of a Belgian flag, then it is (a real family car is King Albert II and Queen Paula Prince Philip)