lady-in-waiting
female personal assistant at a court, royal or feudal, attending on a queen, a princess, or a high-ranking noblewoman
Lady-in-waiting of the Imperial Court of Russia
lady-in-waiting in Russian Empire
Dame du Palais
historical office in the Royal Court of France
Mistress of the Robes
senior lady of the royal households of several European nations
maid of honour
junior attendants of a queen in royal households, junior to the lady-in-waiting