Knight Officer Ranks
A Knight Officer is the general category for a Senior Knight. They have gone above and beyond for the Order. A "Knight Officer" includes all the below ranks:
Knight-Lieutenant - The first level of a "Knight Officer." A "Knight-Lieutenant" is a ranked Officer within a Priory or Commandery that is trusted for extra responsibility and duties. They have demonstrated faithfulness to their Commanders. They don't have their own group to command but perform a function or purpose within their priory.
Knight Commander - A Knight who is given a Commandery consisting of at least 7 other knights besides the Commander (total of 8).
Master Commander - A Knight Commandery (see definition above) who is promoted to act independently of any Prior over an entire state or Priory.
Prior - A Prior oversees a group of at least 30 members. Thus when a Knight Commander grows his Commandery to that level, he's eligible for a promotion to "Prior."
Knight Grand Officer - High Senior Officer, usually a board member.