earl marshal

from the GNU version of the Collaborative International Dictionary of English.

• 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun UK A hereditary royal officeholder and chivalric title under the sovereign of the United Kingdom, responsible for state funerals and coronations.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an officer of the English peerage who organizes royal processions and other ceremonies