Tonight, King Willem-Alexander, Queen Maxima, their daughters, and Princess Beatrix attended a concert for Queen Maxima’s 50th birthday. The concert will be broadcasted on May 16th, the day before her birthday.

Queen Maxima wore a new gown by Iris van Herpen with blue sandals which could be by Jimmy Choo and emerald jewels.

Princess Catharina-Amalia wore a Needle & Thread gown with Louboutin pumps that belong to her mother and a Marina Raphael bag. She also wore earrings that belong to Queen Maxima.

Princess Alexia wore a new Maje green dress with black wedges.

Princess Ariane wore a Needle & Thread sequin tulle gown with nude sandals and a nude clutch.

With thanks to ModeKoninginMaxima for the fashion IDs for the princesses.