Note:  Do not rely on this information. It is very old.

Marshal

Marshal, originally a king's or great noble's "horse-servant," i.e. groom or farrier, an official whose duties came to include those of master of the ceremonies and chief usher. He is nowr represented in England by the hereditary Earl Marshal. In military establishments a marshal or field-marshal is a field-officer of the highest rank, to whom only a commander-in-chief is superior. The term is applied to officials of various kinds, e.g. the executive and administrative officer of a judicial district in the LTnited States.