Equerry
Equerry (?; 277) , noun
[French écurie stable, for older escurie, escuirie (confused somewhat with French écuyer, Old French escuyer, squire), Late Latin scuria, Old High German skiura, sc{not transcribed}ra, barn, shed, German scheuer, from a root meaning to cover, protect, and akin to Latin scutum shield. See Esquire, and compare Ecurie, Querry.]
1.
A large stable or lodge for horses. — Johnson
2.
An officer of princes or nobles, charged with the care of their horses.
In England equerries are officers of the royal household in the department of the Master of the Horse.