Professor Pieter van Vollenhoven (L) and Princess Margriet of the Netherlands attend the 35th Peter Stuyvesant Ball on November 18, 2016 in New York. / AFP / KENA BETANCUR (Photo credit should read KENA BETANCUR/AFP/Getty Images)
General view of the 35th Peter Stuyvesant Ball as Professor Pieter van Vollenhoven and Princess Margriet of the Netherlands attend the on November 18, 2016 in New York. / AFP / KENA BETANCUR (Photo credit should read KENA BETANCUR/AFP/Getty Images)
Professor Pieter van Vollenhoven and Princess Margriet of the Netherlands dance as they attend the 35th Peter Stuyvesant Ball on November 18, 2016 in New York. / AFP / KENA BETANCUR (Photo credit should read KENA BETANCUR/AFP/Getty Images)
Professor Pieter van Vollenhoven and Princess Margriet of the Netherlands dance as they attend the 35th Peter Stuyvesant Ball on November 18, 2016 in New York. / AFP / KENA BETANCUR (Photo credit should read KENA BETANCUR/AFP/Getty Images)
Professor Pieter van Vollenhoven and Princess Margriet of the Netherlands dance as they attend the 35th Peter Stuyvesant Ball on November 18, 2016 in New York. / AFP / KENA BETANCUR (Photo credit should read KENA BETANCUR/AFP/Getty Images)
