Difference between Heir Presumptive and Earl Marshal

HEIR PRESUMPTIVE vs EARL MARSHAL: NOUN

Someone who will inherit only if no better choice for an heir is born.
See heir apparent.
An heir who stands to inherit the estate, title, or office of an intestate ancestor, but whose claim can be defeated if a relative who is closer to the ancestor is born prior to the ancestor's death.
A person who expects to inherit but whose right can be defeated by the birth of a nearer relative

A hereditary royal officeholder and chivalric title under the sovereign of the United Kingdom, responsible for state funerals and coronations.
An officer of the English peerage who organizes royal processions and other ceremonies

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.

Succession, Peacock throne, Kingship, Dynastic, King, Prince consort, Princeling, Monarch, Figurehead, Prince regent, Coronation, Heir, Successor, Throne, Heir apparent

Discrown, Holy roman empire, Grand duchess, Unqueen, Regious, Interregent, Dapifer, Imperiality, Queenhood, Greencloth, Toparch, Queen regnant, Knight marshal, Aulic, Regalism

Succession, Peacock throne, Kingship, Dynastic, King, Prince consort, Princeling, Monarch, Figurehead, Prince regent, Coronation, Heir, Successor, Throne, Heir apparent

Discrown, Holy roman empire, Grand duchess, Unqueen, Regious, Interregent, Dapifer, Imperiality, Queenhood, Greencloth, Toparch, Queen regnant, Knight marshal, Aulic, Regalism

He is the son of Eliwood, the main character of Fire Emblem: The Blazing Blade, and heir presumptive of Pherae.
Frenchman, that he is not heir presumptive to another crown, and that he has previously taken the civic oath.
Prince Albert became King George VI and the young Princess Elizabeth became heir presumptive to the throne.
Known as "The Brat" in the Heraldic Circle, the Heir-presumptive lives up to her nickname.
Roger was made lieutenant of Ireland and was declared heir presumptive to the Crown.

Howard, the sixteenth duke of Norfolk, he was the leading Roman Catholic layman, and deputy earl marshal of England.
Sir Iain of Cawdor transferred the office of Earl Marshal to Duke William of Hoghton.
The Earl Marshal will not stir without an order to do so.
Earl Marshal and Lord High Admiral passed through inheritance.