Designed by Anton Rooskens and Constant, commissioned by Het Nederlands Ballet (The Dutch Ballet, known today as Nationale Opera en Ballet). Het proces [The Trial] was choreographed by Jaap Flier and was his first ballet. The ballet was danced on music by Jan Mul and inspired by Franz Kafka's novel of the same name. The world premiere was on January 20th, 1955 at the Koninklijke Schouwburg in The Hague.
For more information, see the Theater Encylopedie.