Camarera mayor de Palacio
The Camarera mayor de Palacio (First Lady of the Bedchamber) was a court official of the Royal Household and Heritage of the Crown of Spain, who was in charge of the person and the rooms of the Queen of Spain. == Historical precedents and regime during the 17th and 18th centuries == This office was created in 1526 when, during the Habsburg dynasty, the Royal Court was shaped after the Court of Burgundy.
Source: Wikipedia — Camarera mayor de Palacio (CC BY-SA 4.0)