Difference between Heir Presumptive and Parvenu

HEIR PRESUMPTIVE vs PARVENU: 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 person who has risen, climbed up, or has been promoted to a higher social class, especially through acquisition of wealth, rights, or political authority but has not gained social acceptance by those within that new class.
An upstart; a man newly risen into notice.
One newly risen into notice, especially by an accident of fortune and beyond his birth or apparent deserts, whether as a claimant for a place in society or as occupying a position of authority; an upstart.
A person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class

This sense?) Being a parvenu; also, like or having the characteristics of a parvenu.
Characteristic of someone who has risen economically or socially but lacks the social skills appropriate for this new position
Of or characteristic of a parvenu

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

Sybarite, Flatterer, Dandyism, Prole, Petite bourgeoisie, Patrician, Princeling, Aristocracy, Nouveau riche, Arriviste, Parvenue, Nouveau riche, New, Upstart, Pretentious

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

Sybarite, Flatterer, Dandyism, Prole, Petite bourgeoisie, Patrician, Princeling, Aristocracy, Nouveau riche, Arriviste, Parvenue, Nouveau riche, New, Upstart, Pretentious

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.

In 'The Massarenes' (1897) she gave a lurid picture of the parvenu millionaire in smart London society.
Every unite of period a parvenu furor dieting comes on.