Indonesian president Joko Widodo (left) shakes hands with Belgium's King Philippe at the Royal Palace of Brussels on April 21, 2016.
On March 24, Belgium's King Philippe and Queen Mathilde attended a national tribute to the victims of the recent terrorist attacks in Brussels.
— Belgian Royal Palace (@MonarchieBe) March 24, 2016
Photo: a Belgian flag flies at half mast above the Royal Palace of Brussels on March 22, 2016 in the wake of terrorist attacks in the city.
Belgium's King Philippe (second from right) visits the Belgian Federal Police's anti-terrorism unit in Brussels on March 16, 2016, the day after a shootout during a major Belgian-French anti-terror operation in the city.
Belgium's Princess Astrid shakes hands with Indonesian President Joko Widodo in Jakarta, Indonesia on March 15, 2016.
A week of holiday sport for the Belgian royal family:
Belgium's Queen Mathilde and King Philippe arrive for a New Year's reception for Belgian authorities at the Royal Palace in Brussels, on January 28, 2016.