Amare, Spuiplein 150, The Hague, The Netherlands. Thursday 10th February, 2022. Their Royal Highnesses Princess Beatrix and Princess Margriet of The Netherlands attend the anniversary performance of the 50th anniversary of Introdans on Thursday evening 10 February. The performance is dedicated to the Princess Beatrix Spierfonds, which has been in existence for sixty-five years. The performance of Introdans takes place in theater Amare in The Hague during Holland Dance Festival. The Spierfonds, Holland Dance Festival and Introdans are working together on this performance to collect money for scientific research into muscle diseases. Imaged: Samuel Wuersten, artistic and general director of Holland Dance Festival and H.R.H Princess Beatrix of The Netherlands attended the Princess Beatrix Spierfonds. © Charles M Vella/Alamy Live News