Definition of Master of the Armoury in English:

Master of the Armoury

(US Master of the Armory)

noun

historical
  • The controller of the supply, storage, and issue of armour to the British sovereign's troops (the title survived until 1671, when it was subsumed into that of Master General of the Ordnance; it was revived in 1935 as an honorary title for the curator of the Armouries).

Origin

Late 15th century; earliest use found in Rolls of Parliament.