Pretender (noun)

A person who claims or aspires to a position, right, or status without having a just claim to it.

Origin:

From old french pretendre, from latin praetendere "to stretch out in front, claim", from prae "before" + tendere "to stretch".

Examples:

1. He was a pretender to the throne.
2. She was a pretender to the title of Miss Universe.
3. The pretender to the crown was defeated in the war.
4. He was a pretender to the presidency.
5. She was a pretender to the Olympic medal.