Monarchist (noun)

A person who supports a monarchy, a form of government with a single ruler.

Origin:

From monarchy ("a form of government with a single ruler") + -ist.

Examples:

1. He is a monarchist who supports the current royal family.
2. She is a monarchist who believes that a monarchy is the best form of government.
3. Many monarchists argue that a monarchy provides stability and continuity.
4. The monarchist party advocates for the restoration of the monarchy.
5. The monarchists believe that the monarchy is an important symbol of national identity.