pretender

One who simulates, pretends, or alleges falsely; a hypocrite or dissembler.

One who sets forth a claim, especially a claimant to a throne.

One who pretends, or makes a false show, as of learning or of legal right.

One who pretends, or puts forward a claim; a claimant; an aspirant.

Specifically, a claimant to a throne.

One who lays claim, or asserts a title (to something); a claimant.

One who pretends, simulates, or feigns.

A person who professes beliefs and opinions that they do not hold.

A claimant to an abolished or already occupied throne.

a claimant to the throne or to the office of ruler (usually without just title)