Conversation so far:
WasPrince Bernhard of Lippe-Biesterfeld married?
Prince Bernhard of Lippe-Biesterfeld married Wilhelmina Helena Pauline Maria.
Who was Prince Bernhard of Lippe-Biesterfeld married to?
Prince Bernhard of Lippe-Biesterfeld was married to Princess Juliana

Question: Did they have any children?
Self-contained rewrite: Did Prince Bernhard of Lippe-Biesterfeld and Princess Juliana any children?