Vert, a key palewise inverted and reversedOr.

A key is sometimes used as a charge. Specifically, in the SCA, it is used in the officer badge for the Chatelaine: “Vert, a key palewise inverted and reversed Or.”
 

An officer who has jurisdiction over armory, etc. There are three in England
Garter, the principal;
Clarenceaux, whose jurisdiction extends south of the Trent;
and Norry, who officiates north of that river.

The King-of-Arms for Scotland is called Lyon; and for Ireland, Ulster. The office of King-of-Arms is one of great antiquity.
 

One who holds the dignity of knighthood, conferred by the sovereign, entitling the holder to the title of Sir prefixed to his name. Unlike a baronet, however, the dignity is not hereditary. The wife of a knight is legally entitled to the designation of Dame, but by common consent is addressed as Lady.

Formerly a candidate for knighthood had to go through certain ceremonies or religious rites, preparing himself by fasting and prayer and by watching his arms alone all night in a chapel.
 

The lowest order of knighthood; also the oldest.
 

A knightly order next below the Garter.
 

A knight who wandered about the country in quest of adventures for the purpose of displaying his prowess.