Earl marshal \Earl" mar"shal\ An officer of state in England who marshals and orders all great ceremonials, takes cognizance of matters relating to honor, arms, and pedigree, and directs the proclamation of peace and war. The court of chivalry was formerly under his jurisdiction, and he is still the head of the herald's office or college of arms.

Source: Webster's Revised Unabridged Dictionary (1913)