Jacques van Ypersele de Strihou
Jacques Marie Joseph Hubert Ghislain van Ypersele de Strihou (born 5 December 1936) was the Principal Private Secretary to the King of the Belgians (1983–2013). When Albert II of Belgium succeeded his brother Baudouin I of Belgium, he kept his private secretary, so Jacques van Ypersele de Strihou has served two kings.
Source: Wikipedia — Jacques van Ypersele de Strihou (CC BY-SA 4.0)