Mabel and Beatrix attend Prince Friso award ceremony

Princess Mabel (left) and Princess Beatrix (right) of the Netherlands attend the Royal Netherlands Society of Engineers (KIVI) 2016 Prince Friso Engineering Award ceremony in Delft on March 16, 2016. The award is named for Dutch prince Johan Friso, who was the son of Princess Beatrix and husband of Princess Mabel. The prince was seriously injured in a skiing accident in 2012 and died in 2013.

Dutch royals attend MH17 memorial

King Willem-Alexander of the Netherlands; his wife, Queen Máxima; and his mother, Princess Beatrix, arrive at RAI Convention Center in Amsterdam on November 10, 2014 to attend a national commemoration for the victims of the Malaysia Airlines flight MH17 disaster, which took the lives of 193 Dutch citizens. (Photo by Yasin Yagci/Anadolu Agency/Getty Images)