'Mistress of the robes' definitions:

Definition of 'Mistress of the robes'

From: GCIDE

Robe \Robe\, n. [F., fr. LL. rauba a gown, dress, garment; originally, booty, plunder. See Rob, v. t., and cf. Rubbish.]
1. An outer garment; a dress of a rich, flowing, and elegant style or make; hence, a dress of state, rank, office, or the like. [1913 Webster]
Through tattered clothes small vices do appear; Robes and furred gowns hide all. --Shak. [1913 Webster]
2. A skin of an animal, especially, a skin of the bison, dressed with the fur on, and used as a wrap. [U.S.] [1913 Webster]
Master of the robes, an officer of the English royal household (when the sovereign is a king) whose duty is supposed to consist in caring for the royal robes.
Mistress of the robes, a lady who enjoys the highest rank of the ladies in the service of the English sovereign (when a queen), and is supposed to have the care her robes. [1913 Webster]