What's the difference between commandery and commandry?
Commandery
Definition:
(n.) The office or rank of a commander.
(n.) A district or a manor with lands and tenements appertaining thereto, under the control of a member of an order of knights who was called a commander; -- called also a preceptory.
(n.) An assembly or lodge of Knights Templars (so called) among the Freemasons.
(n.) A district under the administration of a military commander or governor.