Found the service notebook the last girl left behind, under a bed. The final page just says never set His Highness's cup down first. That girl isn't in this palace anymore.

• Roche DanHeadmaid. Let me see that notebook.
  Head Maid GretelYou're asking now what you should have asked back then, Sir Knight.
• Cedric BalkreaDid you record that girl's name.
  Head Maid GretelI did, Your Highness. No one has asked, until now.